标签： 苏州桑拿夜生活

Interpretation of ＂National Fitness Guide＂

I. Background

　　Since the 21st century, with the rapid development of China’s economy and society, people’s work and lifestyle have changed, and the physical activity of residents has decreased significantly. Insufficient physical activity is the fourth independent factor leading to human death. Sports activities have become the most active, effective and economical way of life to enhance the national physique and improve the health level.
　　Our government attaches great importance to the important role of sports activities in strengthening physical fitness and improving health level. In 1995, the State Council promulgated and implemented the Outline of the National Fitness Program; In 2007, the State Council issued "Opinions on Strengthening Youth Sports to Enhance Youth Physical Fitness"; In 2014, the State Council issued "Several Opinions on Accelerating the Development of Sports Industry and Promoting Sports Consumption"; In 2016, the State Council issued the Outline of Healthy China 2030, which made clear arrangements for developing mass sports activities, advocating the new fashion of national fitness and promoting the construction of a healthy China.　　
　　Since the implementation of the National Fitness Program in 1995, China’s mass sports undertakings have developed vigorously, sports administrative departments at all levels have actively implemented the Outline of the National Fitness Program, and the youth sports work has been continuously promoted, and the awareness of sports activities has been significantly enhanced; The average area of gymnasiums and gymnasiums in China is 1.57 square meters, and the proportion of people who regularly participate in sports activities is 33.9%. The forms of sports activities for the elderly are rich and colorful, and the quality of life is improved. According to the data of the sixth census, the average life expectancy in China is 74.9 years. The social atmosphere in which sports activities have become an important means to keep fit has been formed.
　　However, we should be aware that the role of sports activities in strengthening the national physique and improving the health level has not been fully exerted, and there is still a big gap from the requirements of a healthy China. According to relevant national survey data, although the proportion of people who regularly participate in sports activities in China has increased year by year, the overweight rate and obesity rate of residents have also continued to increase, and the changes of indicators such as adolescent endurance, adult muscle strength and endurance, and elderly muscle strength are not optimistic. The incidence of chronic non-communicable diseases such as cardiovascular disease and diabetes is on the rise, and many research results of sports activities in the field of health promotion have not been fully applied to practice. Most residents have great blindness when participating in sports activities. There is still much room for improvement in physical fitness and disease prevention and control. Therefore, it is urgent to issue an authoritative guide to physical fitness activities at the national level to guide residents to engage in physical fitness activities scientifically.
　　According to the actual situation of China residents’ participation in physical fitness activities, the National Fitness Guide systematically summarizes and integrates the relevant national research results in the Tenth Five-Year Plan, the Eleventh Five-Year Plan and the Twelfth Five-Year Plan, and is compiled based on the measured data of China residents’ physical fitness. It mainly includes the effect of physical fitness activities, the test and evaluation of sports ability, the principles of physical fitness activities, the guiding scheme of physical fitness activities and so on.

Second, the effect of physical fitness activities

　　In ancient China, there was a written record of improving human health through introduction. A large number of modern research results have confirmed that regular participation in physical fitness activities can effectively enhance physical fitness, prevent diseases, and improve study and work efficiency.

　　(A) to enhance physical fitness, improve health.

　　Constitution refers to the comprehensive and relatively stable characteristics of human morphological structure, physiological function and psychological factors on the basis of heredity and acquisition. Physical fitness activities can improve the cardiopulmonary function, muscle strength, flexibility, balance and reaction ability of human body, and improve body composition, so as to achieve the effect of enhancing physical fitness and improving health level.

　　1. Improve cardiopulmonary function

　　Cardiopulmonary function is one of the core factors affecting physical fitness and health. Low cardiopulmonary function can lead to an increased risk of premature death. Regular physical activities can improve cardiac contractility and vital capacity, regulate blood pressure, improve blood lipids, have a good impact on cardiopulmonary function, and obviously improve the cardiopulmonary function and health level of teenagers, middle-aged people and the elderly.

　　2. Improve body composition

　　Body composition refers to various substances that make up the body and their proportions, which are generally expressed by body fat content and muscle weight and their ratios. Studies have confirmed that excessive body fat, especially abdominal fat, can induce cardiovascular diseases and metabolic diseases. Physical activities based on aerobic exercise can increase fat consumption, reduce body fat content, increase muscle weight and improve body composition.

　　3. Increase muscle strength

　　Strength training can improve muscle strength and muscle fatigue resistance, promote the growth and development of teenagers, make their physique stronger, prevent symptoms such as waist pain, shoulder and neck pain caused by muscle strength attenuation, improve body balance, prevent the elderly from falling, maintain bone health, and prevent and delay osteoporosis.

　　4. Improve flexibility

　　Flexibility is not only an important sports skill, but also an important activity ability in daily life. Regular traction exercises can improve the elasticity of muscles and ligaments, increase the range of physical activities of teenagers, have beautiful body posture, reduce muscle strain, and prevent and treat joint diseases of middle-aged and elderly people.

　　5. Improve the happiness index

　　Physical exercise is an effective means of psychological intervention. Physical fitness activities can increase people’s sense of pleasure, make people relax, relieve stress, form a good psychological state, get physical and psychological satisfaction, make teenagers full of vitality, middle-aged and elderly people full of vitality, and improve happiness index.

　　(B) prevention and treatment of diseases, improve the quality of life

　　Physical activity can improve the functional level of human organs, enhance the body’s immunity and prevent diseases, especially for chronic non-communicable diseases. Chronic non-communicable diseases, including cardiovascular diseases, diabetes and osteoporosis, are important diseases that endanger the health of Chinese residents. Regular physical activities can effectively control the inducing factors of chronic non-communicable diseases, prevent the occurrence of chronic non-communicable diseases, and at the same time, it is also an effective means to treat chronic non-communicable diseases, improve the quality of life and reduce premature death caused by improper lifestyle and insufficient physical activity.

　　1. Cardiovascular disease

　　The prevalence of cardiovascular disease among Chinese residents is on the rise, and cardiovascular death ranks first among the total causes of death among urban and rural residents. Regular physical activities can reduce the risk factors of cardiovascular diseases, effectively prevent cardiovascular diseases and promote the rehabilitation of patients with cardiovascular diseases by improving heart function and vascular elasticity, lowering blood pressure, reducing inflammatory factors and regulating blood lipids.

　　2. Diabetes

　　Diabetes is one of the common chronic diseases, and type 2 diabetes is the most common. Regular physical activity can regulate glucose metabolism, reduce blood sugar, improve the sensitivity of target cells to insulin, effectively prevent and treat type 2 diabetes, and delay the occurrence and development of complications. Physical activity can enhance the physique of diabetic patients and improve their quality of life.

　　3. Overweight and obesity

　　Overweight and obesity are characterized by weight gain and are usually expressed by body mass index (BMI). Overweight and obesity are related to many chronic diseases, including hypertension, coronary heart disease, diabetes, some cancers and various musculoskeletal diseases. The most effective means to prevent and reduce obesity are physical activity and diet balance. Physical activity is the most active method to prevent and control obesity, which can help obese people control their weight, improve their physiological function, prevent weight rebound after losing weight and reduce the occurrence of chronic diseases related to obesity.

　　4. Osteoporosis

　　Osteoporosis is a bone tissue disease characterized by decreased bone density, changes in microstructure of bone tissue, and increased fracture susceptibility. Physical activity helps to increase bone mass, improve bone structure, slow down the loss of bone mass caused by aging, prevent falls and reduce the risk of osteoporotic fractures by enhancing muscle strength and balance.

　　5. Cancer

　　Cancer, also known as malignant tumor, ranks second among the total causes of death among Chinese residents. Physical activity can reduce the risk of breast cancer, colon cancer, lung cancer, prostate cancer and other cancers, relieve the pain of postoperative treatment of cancer patients, and improve the survival rate and quality of life of cancer patients. The World Health Organization estimates that more than 30% of cancers can be prevented by physical activities.

　　6. Depression

　　Depression, also known as depressive disorder. In recent years, the incidence of depression in China is on the rise. Physical fitness activities can change the chemical composition of the brain, cause good emotional and state responses, effectively prevent depression, and have a positive intervention effect on patients with mild to moderate depression.

　　(C) improve the efficiency of study and work

　　Physical fitness activities can improve people’s cognitive ability and make people concentrate. Regular physical fitness activities can reduce the release of inhibitory neurotransmitters, delay central fatigue, have a good impact on the nervous system, help improve the learning efficiency and academic performance of teenagers, extend the effective working hours of adults and improve work efficiency.

Third, the sports ability test and evaluation

　　Sports ability refers to the ability of the human body to engage in sports activities. The sports ability test and evaluation of this guide includes single sports ability test and evaluation and comprehensive sports ability evaluation. Before engaging in sports activities, the human body should comprehensively test and evaluate the indexes related to sports ability, so as to scientifically formulate personalized sports activities programs. At different stages of engaging in sports activities, we should regularly carry out sports ability tests to objectively evaluate the effect of sports activities and ensure the safety and effectiveness of sports activities.

　　(A) individual sports ability test and evaluation

　　Single exercise ability test includes aerobic exercise ability, muscle strength, flexibility, balance and reaction ability test. The evaluation of individual sports ability adopts a five-point system, with 5 being excellent, 4 being good, 3 being medium, 2 being poor and 1 being poor.

　　1. Aerobic exercise ability

　　Aerobic exercise ability reflects the ability of human body to carry out aerobic exercise for a long time, which is closely related to cardiopulmonary function. Strong aerobic exercise ability indicates good cardiopulmonary function. Good aerobic exercise ability is an important sign of good health. Regular participation in sports activities can maintain and improve the aerobic exercise ability of human body.

　　Maximum oxygen uptake is an important index to evaluate aerobic exercise ability.

　　2. Muscle strength

　　Muscle strength is the ability of muscle to overcome or resist resistance when it is tense or contracting. Muscle strength test indicators include grip strength, back strength, push-ups, sit-ups, vertical jump test and so on.

　　3. Flexibility, balance and reaction ability

　　Flexibility refers to the range of motion of each joint during physical activity and the elasticity and stretching ability of ligaments, tendons, muscles, skin and other tissues across the joint. Good flexibility can increase the range of motion and reduce sports injuries.

　　② Balance refers to the ability to maintain body posture or control the center of gravity. Balance ability is the basis of static and dynamic activities. Good balance ability can effectively prevent all kinds of injuries caused by falls.

　　③ Reaction ability mainly refers to the ability of the human central nervous system to consciously control the rapid movement of the skeletal muscle system after receiving certain instructions or stimuli, which embodies the coordination between the nerve and the muscle system.

　　(2) Comprehensive sports ability evaluation

　　Cardiopulmonary function is one of the most important factors affecting human health, and aerobic exercise ability is closely related to cardiopulmonary function. Therefore, aerobic exercise ability is ranked first in the comprehensive exercise ability evaluation system, with a weight of 40%.

　　Obesity can induce a variety of chronic diseases and become an important risk factor for public health. BMI is an index reflecting the degree of obesity. In view of the important role of BMI in the evaluation system of physical fitness and health, and its obvious influence on sports ability, BMI is included in the comprehensive evaluation system of sports ability, with a weight of 20%.

　　The calculation formula of BMI is: weight (kg) divided by the square of height (m) [BMI= weight (kg)/height 2 (m 2)]. The normal range of China people’s BMI is greater than 18.5 and less than 24, with BMI equal to or greater than 24 being overweight and equal to or greater than 28 being obese.

　　Muscle strength is closely related to exercise ability and quality of life, and its weight is 20%. The weights of flexibility, balance and responsiveness are 10%, 5% and 5% respectively.

　　According to the weights and coefficients of different individual sports ability indexes in the comprehensive sports ability evaluation, the comprehensive sports ability score is calculated, and the calculation method is as follows:

　　Comprehensive athletic ability score = aerobic athletic ability score ×8+ muscle strength score ×4+BMI score ×4+ flexibility score ×2+ balance ability score ×1+ reaction ability score ×1.

　　The comprehensive sports ability evaluation adopts four grades: 85 or above is excellent, 75 or above is good, 60 or above is qualified, and less than 60 is poor.

Fourth, the principle of physical fitness activities

　　Engaged in physical fitness activities, we must follow the following principles and develop good habits of physical fitness activities.

　　(A) the principle of safety

　　The principle of safety refers to that in the process of physical fitness activities, it is the primary principle to ensure that sports participants do not appear or try to avoid sports injury accidents. Before starting physical fitness activities, you should have a physical examination, comprehensively evaluate your physical condition and sports ability, and make a physical fitness program suitable for your own characteristics. Make full preparations before physical fitness activities, and do a good job of sorting out and relaxing after physical fitness activities.

　　(B) the principle of all-round development

　　The principle of all-round development means that in physical fitness activities, all parts of the body should participate in sports, so that the functional level of various organ systems can be generally improved, not only to improve cardiopulmonary function and immune ability, but also to improve physical fitness such as muscle strength and flexibility. Therefore, it is necessary to choose physical fitness activities involving the main muscle groups of the whole body to achieve all-round development results.

　　(3) The principle of gradual progress

　　The principle of gradual progress refers to scientifically and gradually increasing the time and intensity of physical fitness activities. The principle of step by step emphasizes that according to one’s adaptability to physical fitness activities, one should gradually increase the exercise load, so as to improve one’s physical function and athletic ability continuously, so as to achieve the best physical fitness activities.

　　(D) the principle of individuality

　　The principle of individuation refers to making individualized exercise and fitness programs according to everyone’s genetic characteristics, functional characteristics and exercise habits. When making an exercise and fitness program, it is necessary to carry out necessary medical examination and exercise ability test in order to understand everyone’s specific situation and make the exercise and fitness program more personalized.

Five, physical fitness program elements

　　To make a plan of physical fitness activities, we should mainly consider three basic elements: the way of physical fitness activities, the intensity of physical fitness activities and the time of physical fitness activities.

　　(A) Physical fitness activities

　　Physical exercise mode is the specific fitness means and methods adopted by physical fitness activists. According to the sports characteristics of different sports and fitness activities, sports and fitness activities can be classified into five categories: aerobic exercise, strength exercise, ball games, traditional sports in China and traction exercise.

　　1. Aerobic exercise

　　Aerobic exercise refers to the rhythmic periodic exercise in which the main muscle groups of the whole body participate under the condition of sufficient oxygen supply. During aerobic exercise, the main muscle groups of the whole body participate in the work, which can improve the human function in an all-round way and is the most popular way of physical activity at home and abroad. Aerobic exercise is divided into moderate intensity exercise and high intensity exercise. Moderate exercise intensity mainly includes fitness walking, jogging (6 ~ 8 km/h), cycling (12 ~ 16 km/h), mountain climbing, stair climbing, swimming, etc. High-intensity exercise mainly includes running (more than 8 km/h) and cycling (more than 16 km/h). Moderate intensity aerobic exercise has a steady rhythm and is the safest way for middle-aged and elderly people to exercise.

　　People should take aerobic exercise as the basic way of physical activity when they are engaged in physical fitness activities. Aerobic exercise is the first choice for physical exercisers whose main purpose is to improve cardiopulmonary function, lose weight, regulate blood pressure and improve blood lipid.

　　2. Strength exercises

　　Strength training refers to the way that the human body overcomes resistance and improves muscle strength. Strength exercises include non-instrumental strength exercises and instrumental strength exercises. Non-instrumental exercises refer to strength exercises to overcome one’s own resistance, including push-ups, vertical jumping in situ, sit-ups, etc. Instrument strength exercise refers to the strength exercise that the human body carries out on various strength exercise instruments.

　　Strength exercises can improve muscle strength, increase muscle volume, develop muscle endurance, and promote bone development and bone health. Teenagers’ strength exercises can obviously improve their physical fitness and make their bodies stronger; After adulthood, with the growth of age, strength exercises should be increased year by year; Strength exercises for the elderly can improve their balance ability and prevent all kinds of accidental injuries caused by physical falls.

　　3. Ball games

　　Ball games include direct physical contact ball games and indirect physical contact ball games. The former includes basketball, football, rugby, hockey, ice hockey, etc. The latter includes volleyball, table tennis, badminton, tennis, gateball and softball.

　　Ball games are interesting, and participants’ interest in sports can be improved through competition and confrontation. Ball games have certain special technical requirements and need good physical fitness as the foundation. Regular participation in ball games can improve the body’s cardiopulmonary function, muscle strength and reaction ability, and adjust the psychological state, which is the first choice for teenagers.

　　4. Traditional sports in China.

　　Traditional sports in China include Wushu and Qigong. Specific forms of activities include Tai Ji Chuan (sword), Mulan Boxing (sword), martial arts routines, Wuqin Opera, Baduanjin, Yijinjing, Six-character Tactics and so on.

　　China’s traditional sports and fitness methods are gentle, soft and rigid, and emphasize the combination of ideas and physical activities, which has a unique health-keeping effect. It can improve the cardiopulmonary function and balance ability of human body, improve the function of nervous system and adjust mental state, and has good safety.

　　People, especially middle-aged and elderly people, whose main fitness purpose is to improve their balance, flexibility and coordination, improve their heart and lung functions and adjust their mental state can choose the traditional exercise and fitness methods in China.

　　5. Pulling exercises

　　Traction exercises include static traction exercises and dynamic traction exercises. Various traction exercises can increase the range of motion of joints, improve sports skills and reduce sports injuries.

　　Static traction includes positive pressure leg, side leg press, shoulder pressing, etc. Dynamic traction includes forward kicking, side kicking, waist swinging, etc. Those who take part in physical fitness activities for the first time should focus on static traction exercises, and gradually increase the content of dynamic traction exercises with the improvement of flexibility.

　　See Table 1 for the fitness effects of different sports activities.

　　Recommend sports activities according to the purpose of sports and fitness;

　　— — Physical exercisers whose main purpose is to improve their physical fitness and strengthen their bodies choose their favorite physical fitness activities that can be adhered to for a long time, such as aerobic exercise, ball games and traditional China fitness exercises.

　　— — Physical exercisers whose main purpose is to improve heart and lung function should choose aerobic exercise, ball games and other physical fitness activities in which the whole body muscles participate.

　　— — Physical exercisers whose main purpose is to reduce weight should choose long-term aerobic exercise. Long-term and moderate-intensity physical fitness activities can increase body fat consumption and reduce fat content. Long-term brisk walking, jogging and cycling are ideal exercise methods to reduce weight.

　　— — Physical exercisers whose main purpose is to adjust their mental state should choose various recreational ball games and traditional China sports such as Tai Ji Chuan and Qigong, so as to relieve their psychological pressure and improve their sleep.

　　— — Sports athletes whose main purpose is to increase muscle strength can choose instrumental strength exercises and non-instrumental strength exercises according to their own fitness needs and conditions. The effect of strength exercises is related to strength load and repetition times. Generally, strength exercises with large load and few repetitions mainly develop muscle strength, while strength exercises with small load and multiple repetitions mainly develop muscle endurance.

　　— — Physical exercisers with the main purpose of improving flexibility can choose various pulling exercises, especially in the preparation and relaxation stages, which can not only save physical exercise time, but also achieve better fitness results. Various aerobic exercises, aerobics, Tai Ji Chuan, Qigong and yoga can improve flexibility.

　　— — Physical exercisers whose main purpose is to improve their balance ability can choose various special balance training methods, including sitting balance ability exercise, standing balance ability exercise and sports balance ability exercise. Tai Ji Chuan (sword), table tennis, badminton, tennis, softball and other sports can also improve the balance ability of the human body.

　　— — Physical exercisers whose main purpose is to improve their reaction ability can choose various ball games, such as table tennis, badminton, basketball, football and tennis, which can improve their reaction ability.

　　See Table 2 for the recommended sports activities according to the purpose of sports and fitness.

　　(B) the intensity of physical fitness activities

　　The intensity of physical fitness activities is an important content of making physical fitness activities plan. The intensity is too small, and there is no obvious fitness effect; Excessive intensity is not only bad for fitness, but also may cause sports injuries.

　　1, the intensity of physical fitness activities.

　　The intensity of physical fitness activities can be divided into three levels: low intensity, medium intensity and high intensity.

　　Low-intensity exercise has little stimulation to the body, and the center rate of exercise process is generally less than 100 times/minute, such as walking.

　　Moderate intensity exercise stimulates the body moderately, and the center rate of exercise process is generally 100 ~ 140 times/minute, such as walking, jogging, cycling, Tai Ji Chuan, tennis doubles and so on.

　　High-intensity exercise can stimulate the body, which can further improve the fitness effect. The sports center rate exceeds 140 times/minute, such as running, fast cycling, fast-paced aerobics and fast mountain climbing, stair climbing, tennis singles, etc.

　　People with good exercise habits and good physique can do high-intensity and moderate-intensity exercise; People with certain exercise habits and good physique can use moderate intensity exercise; People who participate in physical fitness activities or are weak in physique at the beginning can exercise at moderate or low intensity. Physical exercisers can adjust their exercise intensity scientifically according to their own conditions to adapt to individual conditions when implementing the physical fitness program.

　　2. Monitoring the intensity of physical fitness activities

　　The indexes for monitoring the intensity of physical fitness activities include exercise center rate, breathing changes during exercise and self-feeling during exercise.

　　(1) monitoring the intensity of physical fitness activities with heart rate.

　　The greater the intensity of physical fitness activities, the more obvious the body and heart respond to sports stimuli and the faster the heart rate. Generally, the maximum heart rate percentage and the measured heart rate during exercise are commonly used to monitor the intensity of physical exercise.

　　The maximum heart rate refers to the fastest heartbeat frequency that can be achieved during human movement, expressed in beats per minute. There are two methods to measure the maximum heart rate: direct measurement and indirect inference. For direct measurement, it is necessary to adopt incremental load exercise testing in special testing institutions, which requires special exercise testing instruments and equipment.

　　The maximum heart rate of human body is related to age, and the maximum heart rate of normal people can be calculated by the following formula: maximum heart rate (beats/minute) =220- age (year)

　　During physical exercise, the heart rate is 85% or above the maximum heart rate, which is equivalent to high-intensity exercise; The heart rate is controlled in the range of 60% ~ 85% of the maximum heart rate, which is equivalent to moderate intensity exercise; The heart rate is controlled in the range of 50% ~ 60% of the maximum heart rate, which is equivalent to low-intensity exercise.

　　In the process of physical fitness activities, when the measured heart rate reaches more than 140 beats/minute, it is equivalent to high-intensity exercise; The heart rate is in the range of 100 ~ 140 beats/min, which is equivalent to moderate intensity exercise, and the heart rate is lower than 100 beats/min, which is equivalent to low intensity exercise.

　　(2) Monitoring the intensity of physical fitness activities by breathing.

　　Physical fitness activities cause changes in human respiratory frequency and depth, and exercise intensity can be monitored according to the changes in breathing during exercise.

　　Breathing easily: compared with the quiet state, the breathing frequency and breathing depth change little during exercise, and breathing is stable, so you can sing. The exercise heart rate in this breathing state is generally below 100 beats/min, which is equivalent to low-intensity exercise.

　　Breathing is relatively easy: the breathing depth and breathing frequency increase during exercise, and normal language communication can be achieved. The exercise heart rate is equivalent to 100 ~ 120 beats/min, which is a moderate and small intensity exercise.

　　Shortness of breath: you can only speak short sentences during exercise, but you can’t fully express long sentences. The exercise heart rate is equivalent to 130 ~ 140 beats/min, which is a moderate intensity exercise.

　　Shortness of breath: it is difficult to breathe during exercise, and you can’t talk in words during exercise. Exercise heart rate generally exceeds 140 beats/min, which is a high-intensity exercise.

　　(3) Monitor the intensity of physical fitness activities with subjective physical sense.

　　Subjective physical feeling in the process of human exercise can be divided into 6-20 grades. The subjective physical feeling of low-intensity exercise is relaxed (grade 9-10), the subjective physical feeling of moderate-intensity exercise is slightly tired (grade 13-14), and the subjective physical feeling of high-intensity exercise is tired (grade 15-16).

　　Subjective physical sensation levels are closely related to heart rate. The number of subjective physical sensation levels during exercise is multiplied by 10, which is equivalent to the heart rate during exercise (times/minute). For example, the number of subjective physical sensation levels in exercise is 12, which is equivalent to the heart rate of 120 beats/minute in exercise.

　　Physical exercisers can control exercise intensity through subjective physical feeling. Generally speaking, when doing moderate-intensity aerobic exercise, the subjective physical feeling is relaxed or slightly tired.

　　See Table 3 for the intensity division and monitoring of physical fitness activities.

　　3. Strength training intensity and fitness effect

　　The greater the load weight of strength exercises, the greater the exercise intensity. When doing strength exercises, the maximum repetitive load (RM) is often used to indicate the magnitude of load intensity. Maximum repetitive load refers to the maximum number of strength exercises that can be repeated when a certain load is used in muscle strength exercises. For example, when a person flexes and stretches a dumbbell, the maximum load is 20kg, and it can only be repeated once, then 20kg is the maximum repeated load (1RM) of his dumbbell. If he can repeat the flexion and extension of the load-bearing arm for 8 times at most with a load of 15 kg, then 15 kg is the maximum repeated load (8RM) of his load-bearing arm for 8 times. In non-instrumental strength training, a person can complete 8 push-ups, which is equivalent to 8RM, and so on.

　　Strength training load intensity can be divided into three levels: low intensity, medium intensity and high intensity, and strength training intensity is closely related to fitness effect.

　　High-intensity strength exercises, equivalent to 1 ~ 10rm, each load weight is repeated for 1 ~ 10 times, and each part is repeated for 2 ~ 3 groups, and the interval between groups is 2 ~ 3 minutes. High-intensity strength exercises are mainly used to improve the maximum muscle contraction strength.

　　Moderate intensity strength exercise, equivalent to 11 ~ 20rm, the repetition times of each load weight are 10 ~ 20 times, each part is repeated in 3 groups, and the interval between groups is 1 ~ 2 minutes. Moderate intensity strength exercises can be used to improve muscle strength and increase muscle volume.

　　Low-intensity strength exercise, equivalent to 20RM or above, each load weight is repeated more than 20 times, each part is repeated in 2 groups, and the interval between groups is 1 minute. Low-intensity strength exercises are mainly used to develop muscle endurance.

　　(3) Time for physical fitness activities

　　The time of each physical fitness activity directly affects the effect of physical fitness activities. Exercise time is too short, which has little effect on improving physical function; However, if the exercise time is too long, it will easily cause fatigue accumulation and will not further increase the fitness effect. For people who often participate in physical exercise, the effective physical fitness activity time is 30 ~ 90 minutes every day. In the initial stage of participating in physical fitness activities, the exercise time can be slightly shorter; After a period of physical fitness activities, the body can adapt to sports and can extend the exercise time. Physical fitness activities can be carried out once a day or several times separately, and each physical fitness activity should last for more than 10 minutes.

　　People who are used to physical fitness activities should exercise for 3-7 days a week, with 30-60 minutes of moderate-intensity exercise or 20-25 minutes of high-intensity exercise every day. In order to achieve the ideal effect of physical fitness activities, we should carry out moderate-intensity exercise for more than 150 minutes or high-intensity exercise for more than 75 minutes every week; If you have good exercise habits, and the comprehensive evaluation of exercise ability test is above good, you can do 300 minutes of moderate-intensity exercise or 150 minutes of high-intensity exercise every week, and the fitness effect is better.

Six, the content and arrangement of a physical fitness activity

　　A complete physical fitness activity should include three parts: preparation activity, basic activity and relaxation activity, as shown in Table 4.

　　(1) Preparatory activities

　　Warm-up activities refer to various physical exercises before the start of major physical fitness activities. The main function of warm-up activities is to mobilize the functional potential of heart, lungs, muscles and other organ systems in advance, so as to adapt to the upcoming various fitness activities, obtain the best exercise fitness effect, and effectively prevent acute and chronic sports injuries.

　　The preparation time is generally 5 ~ 10 minutes, which mainly includes two aspects. First, carry out proper aerobic exercise, such as brisk walking and jogging, so as to "warm up" various organ systems of the body and enter the working state in advance; The second is to carry out various traction exercises to increase joint mobility, improve the elasticity of soft tissues such as muscles and ligaments, and prevent muscle injury.

　　(2) Basic activities Basic activities are the main forms of physical exercise, including aerobic exercise, strength exercise, ball games and traditional China sports and fitness methods, which generally last for 30-60 minutes. In a physical fitness activity, it is necessary to choose a suitable exercise mode and control the appropriate exercise intensity and exercise time. In the arrangement of physical fitness activities in a week, physical fitness activists can have different physical fitness activities and exercise intensity according to their own situation. See Table 5 for the arrangement of exercise intensity, duration and exercise frequency of different physical fitness activities.

　　(3) Relaxation activities

　　Relaxation activities refer to all kinds of physical activities after the main physical fitness activities, mainly including low-intensity activities such as walking (or jogging) and various pulling exercises. After physical fitness activities, doing some moderate relaxation activities will help to eliminate fatigue, alleviate or avoid some uncomfortable symptoms in the body, and gradually restore the functions of various organs and systems of the body from the exercise state to the quiet state. Doing some traction exercises is conducive to improving the flexibility of the body.

Seven, different stages of physical fitness activities.

　　(A) the initial physical fitness program

　　People who have just participated in physical fitness activities have less exercise load, and the duration of each physical fitness activity is relatively short, so that the body gradually adapts to the exercise load and the exercise ability is gradually improved. At the beginning of the physical fitness activity plan, you should choose the physical fitness activity mode that you like or conform to the fitness purpose. There should be a comfortable sense of fatigue after exercise, which basically disappears the next day after exercise.

　　At the beginning of physical fitness activities, the principle of increasing exercise load is to increase the daily exercise time, then increase the number of days of exercise per week, and finally increase the intensity of exercise.

　　The initial period of physical fitness activities is about 8 weeks, and the specific plan is as follows:

　　— — Exercise mode: moderate intensity aerobic exercise, ball games, China traditional exercise mode and flexibility exercise.

　　— — Exercise intensity: 55% of the maximum heart rate, gradually increasing to 60%.

　　— — Duration: Exercise for 10-20 minutes each time, and gradually increase to 30-40 minutes.

　　— — Exercise frequency: 3 days/week, gradually increasing to 5 days/week.

　　See Table 6 for an example of the initial physical fitness program.

　　(2) Medium-term sports fitness program

　　After 8 weeks of physical fitness activities, the human body basically adapts to the exercise load at the initial stage of exercise, and its physical function and exercise ability are improved, so it can enter the middle stage of physical fitness activities. At this stage, continue to increase the intensity and time of exercise, and gradually increase the time of moderate-intensity aerobic exercise to 150 minutes or more per week, so that the body can adapt to moderate-intensity aerobic exercise. The medium-term physical fitness activities last about 8 weeks, and the specific plan is as follows:

　　— — Exercise mode: maintain the initial mode of physical fitness activities; Increase strength exercises appropriately.

　　— — Exercise intensity: aerobic exercise intensity gradually increases from 60% ~ 65% of the maximum heart rate to 70% ~ 80% of the maximum heart rate; Anaerobic exercise can be arranged once a week, and the strength exercise uses a load of more than 20RM, which is repeated 6 ~ 8 times.

　　— — Duration: 30 ~ 50 minutes for each exercise; If anaerobic exercise is arranged, exercise for 10 ~ 15 minutes each time; 1 ~ 2 strength exercises once a week, 6 ~ 8 kinds of muscle strength exercises each time, and 1 ~ 2 groups are repeated for 5 ~ 10 minutes.

　　— — Exercise frequency: 3 ~ 5 days/week.

　　At this stage, the physical fitness program is basically fixed, and gradually transitions to a long-term and stable physical fitness program. See Table 7 for examples of mid-term physical fitness activities.

　　(3) Long-term physical fitness program

　　When the physical function reaches a higher level and good habits of physical fitness activities are formed, a long-term stable physical fitness activity plan suitable for one’s own characteristics should be established. Long-term and stable physical fitness activities should include at least 200-300 minutes of moderate-intensity exercise or 75-150 minutes of high-intensity exercise every week; Carry out strength exercises 2 ~ 3 times a week, and pull exercises no less than 5 times. The specific scheme is as follows:

　　— — Exercise mode: maintain the exercise mode in the middle stage of physical fitness activities.

　　— — Exercise intensity: moderate intensity exercise is equivalent to 60% ~ 80% of the maximum heart rate, and high intensity exercise reaches more than 80% of the maximum heart rate; Strength exercises are performed with a load of 10 ~ 20 rm and repeated for 10 ~ 15 times; All kinds of pulling exercises.

　　— — Duration: 30-60 minutes of moderate intensity exercise each time, or 15-25 minutes of high intensity anaerobic exercise, or alternating moderate and high intensity exercise; 8 ~ 10 kinds of muscle strength exercises, each repeated 2 ~ 3 groups, each time for 5 ~ 10 minutes of stretching exercises.

　　— — Exercise frequency: exercise for 5 ~ 7 days/week, and high-intensity exercise should not exceed 3 times per week.

　　See Table 8 for examples of long-term physical fitness activities.

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To achieve high-quality development, we need to step up the ＂short board＂

　　Cannikin Law tells us that the short board is the key factor to determine the capacity of the whole barrel. No matter how long the short board is, it has no practical significance. The same is true of economic development. Shortcomings not only affect the speed of economic growth, but also restrict the quality of economic development. At the moment when "China’s economy has shifted from a high-speed growth stage to a high-quality development stage", in order to effectively improve the quality and efficiency of economic operation, we must make real contributions and see practical results by "complementing the shortcomings".

　　There are shortcomings in any period of economic development. In the stage of rapid growth, the main shortcomings of China’s economic operation are lack of materials and supply, and serious supply shortages such as transportation, energy and communication have become "bottlenecks". At the stage of high-quality development, the new shortcomings are highlighted. For example, compared with the economic growth rate, quality and efficiency are shortcomings; Compared with the virtual economy, the real economy is a short board; Compared with urban economy, rural economy is a short board; Compared with the economic field, the people’s livelihood field is a short board; From the point of view that the institutional mechanism adapts to the new requirements of economic and social development, the lack of institutional supply is a shortcoming. Therefore, it is an inevitable choice for China’s economy to move towards high-quality development. We must start from the important areas and key links that seriously restrict economic and social development and the outstanding problems that the people urgently need to solve, and make up for both hard and soft shortcomings, both development shortcomings and system shortcomings.

　　From the analysis, focusing on the high-quality economic development, among many shortcomings, three key shortcomings should be given priority: insufficient scientific and technological innovation, lagging system and unsmooth economic cycle.

　　Fill in the shortcomings of scientific and technological innovation

　　From a macro perspective, the key reason for the short quality of economic development is the lack of innovation drive. Innovation is the propeller of high-quality development. Only by constantly innovating and fully applying innovation results to economic activities can product quality be improved, people’s new needs can be continuously met, economic operation efficiency can be improved, and the economy can embark on the track of high-quality development.

　　我国科技创新不足的短板特别是关键核心技术短板，使我们真切感受到了“卡脖子”的滋味。习近平总书记指出，“关键核心技术是国之重器，对推动我国经济高质量发展、保障国家安全都具有十分重要的意义，必须切实提高我国关键核心技术创新能力，把科技发展主动权牢牢掌握在自己手里，为我国发展提供有力科技保障”。

　　突破关键核心技术“瓶颈”势在必行，时不我待，但突破并不容易，需要付出艰苦努力，统筹谋划，把加强基础研究和推进教育改革作为重要支点。事实证明，基础研究和教育是制约我国经济高质量发展的两大短板。

　　一是要补基础研究之“短”。基础研究是自主创新的源头，是科技强国的基石。补齐基础研究短板，就要加大相应的经费投入。资料显示，世界主要创新型国家的基础研究经费占研发经费比例多为15%到20%，与之相比，我国这一比例还有较大差距。鉴于此，应进一步提高基础研究经费投入水平，并引导企业和社会资本更多投向基础研究。同时，补齐基础研究短板，还应提高基础研究人员待遇，吸引更多高端人才，创设宽松学术环境，建立符合基础研究特点和规律的评价机制；加强创新基地建设，优化国家重点实验室布局，完善国家对基础研究的支持体系。

　　The second is to make up for the "short" of education. High quality development depends on innovation, innovation depends on talents, and the cultivation of innovative talents depends on education. The key to cultivate more innovative talents is to change the educational concept and the examination-oriented education model. The cultivation of innovative talents must be eclectic and teach students with different interests and talents in accordance with their aptitude. Higher education should allocate more resources to frontier disciplines and the cultivation of innovative talents, so that more talents with open thinking can stand out. To fill the shortcomings of education, we need to continue to increase funding and strengthen the efforts to improve the quality of teachers, so that high-quality teachers can cultivate high-quality students. In order to attract more outstanding talents to join the teaching staff, it is essential to improve the status and treatment of teachers. Moreover, the cultivation of innovative talents also needs the help of family education. Good family education is the soil for cultivating students’ exploration spirit, independent thinking ability and habits.

　　Fill in the shortcomings of the system

　　To achieve high-quality economic development, we must also fill in the shortcomings of the system. Without a matching system, high-quality development cannot be achieved. To a certain extent, the intensity of system reform determines the progress of high-quality development. The reform of the economic system must be accelerated, deepened in an all-round way, and key breakthroughs must be made to provide strong institutional support for high-quality development. In particular, the reform in the following three key areas must be intensified, accelerated, and take substantial steps.

　　The first is the reform of the state-owned enterprise system. Whether China’s economy can achieve high-quality development depends to a great extent on whether the state-owned enterprises that play a leading role in the national economy can achieve high-quality development. The Decision of the Central Committee of the Communist Party of China on Several Major Issues of Comprehensively Deepening Reform, adopted by the Third Plenary Session of the 18th CPC Central Committee, puts forward that the mixed ownership economy is "an important realization form of the basic economic system". To achieve high-quality development, it is necessary to promote the reform of mixed ownership of state-owned enterprises, expand the reform of mixed ownership in key areas, attract non-state-owned capital to participate in shares, implement employee stock ownership, improve corporate governance structure and enhance the vitality of state-owned enterprises. At the same time, it is necessary to deepen the reform of state-owned assets management system, implement a targeted "streamline administration, delegate power, strengthen regulation and improve services" for state-owned enterprises, and accelerate the transformation from managing enterprises to managing capital, so as to make state-owned enterprises stronger, better and bigger in the market competition.

　　The second is the reform of the financial system. The importance of financial system reform to achieve high-quality development lies in that both the financial system and the financial system have an important impact on resource allocation and structural adjustment, which is related to the quality of economic development. Where the huge budget funds are invested and used, whether they can avoid inefficient and ineffective investment, realize efficient allocation and promote high-quality development, will inevitably depend on the improvement of the financial system. Therefore, we must deepen the reform of fiscal and taxation system to make it "comprehensive, standardized, open and transparent"; Improve the budget management system and promote the reform of income division between the central and local governments; Improve the transfer payment system, deepen the reform of value-added tax, and establish a standardized and reasonable central and local government debt management and risk early warning mechanism. At the same time, to achieve high-quality development, especially to promote the development of high-tech industries, we must give full play to the role of financial markets, especially capital markets, in resource allocation. One of the problems in China’s financial system is that the proportion of indirect financing is too large, the capital market is underdeveloped, the mechanism is imperfect, and the role of efficient allocation of resources cannot be fully exerted. Another problem existing in the financial system is that a large amount of funds are "divorced from reality", and the financing problems of enterprises, especially small and medium-sized enterprises, have not been solved well for a long time, which has affected the efficiency and benefit of economic operation. The focus of financial system reform is to promote financial market-oriented reform, expand the opening of the financial industry to the outside world, gradually liberalize access restrictions, improve the multi-level capital market system, and increase the proportion of direct financing.

　　The third is the reform of the income distribution system. The significance of the reform of income distribution system for high-quality development lies in that distribution, as a basic link of social reproduction, plays an important guiding role in resource flow and resource allocation. How to distribute the produced things and whether they are distributed reasonably will not only affect the consumption structure and demand structure, but also affect the investment structure and supply structure. The supply-side structural reform has continuously made new progress, which is inseparable from the cooperation of the reform of the income distribution system. Relieving the pressure of excessive personal income gap, releasing consumption potential and effectively expanding the total social demand are also inseparable from the deepening reform of the income distribution system. At present, the focus of the reform of income distribution system is to accelerate the reform of taxation, wages, social security, transfer payment and other institutional mechanisms.

　　Fill the short board of economic cycle

　　The Central Economic Work Conference held in December 2018 proposed that "it is necessary to smooth the national economic cycle and accelerate the construction of a unified, open and competitive modern market system". Emphasis on "unblocking the national economic cycle" aims at "unblocking the cycle". Chinese medicine says, "the general principle is painless, but the pain is unreasonable", and the same is true for economic operation. The "unsmooth" economic cycle not only hinders the flow of factors, but also increases transaction costs, resulting in low efficiency and efficiency of economic operation. The key to smooth the economic cycle is to remove the "obstruction" of the economic cycle, clear up the obstacles of the economic cycle, and make all parts and links of various economic departments interconnected and various factors flow smoothly.

　　Judging from the actual operation of China’s economy, the "unsmooth circulation" has become a shortcoming that restricts high-quality development. For a long time, local protection, industry monopoly, administrative intervention, access restrictions, ownership discrimination and many other factors have hindered the formation of a unified national market. Various market players cannot compete in a fair market environment, and the market’s function of efficiently allocating resources cannot be fully exerted.

　　Resources are limited. Whether the limited resources can be allocated to the most needed fields, the most promising industries and the most efficient enterprises, so as to avoid or reduce the mismatch of resources and improve the efficiency of economic operation mainly depends on whether the national economic cycle can be smooth, and whether a unified, open and competitive modern market system can be formed. Only when the market is open and the circulation is smooth can the economy live.

　　To smooth the national economic cycle and achieve high-quality development, we need to make key breakthroughs in the following aspects.

　　First, smooth the circulation of real economy and virtual economy. On the one hand, the real economy is the fundamental source of wealth creation and the material basis for the development of virtual economy; On the other hand, the development of real economy can not be separated from the support of virtual economy, especially finance as its basic form, and finance is the blood of real economy. The problem now is that the structure of the real economy and the virtual economy is unbalanced, the circulation is not smooth, the virtual economy is excessively prosperous, and a large amount of funds are "divorced from reality", which has seriously affected the development of the real economy. To fill the shortcomings of the real economy, we must follow the requirements of the report of the 19 th National Congress of the Communist Party of China. "We must focus on the real economy and improve the quality of the supply system as the main direction." Accordingly, finance must improve its ability to serve the real economy and promote the benign interaction between the real economy and the virtual economy. To smooth the circulation of real economy and virtual economy, we should give full play to the function of capital market and increase the proportion of direct financing; Further reduce taxes and fees, reduce the burden on enterprises, and increase financial support for small and medium-sized enterprises and innovation and entrepreneurship; Strengthen financial supervision to curb the "self-circulation" of funds in the financial system. It is necessary to take multiple measures to promote the concentration of resources in the real economy.

　　The second is to smooth the economic cycle between urban and rural areas. The urban-rural economic cycle is not smooth, which is a major problem that must be solved when China’s economy embarks on the track of high-quality development. The gap between urban and rural areas caused by the dual structure of urban and rural areas makes more resources flow from rural areas with low income to cities with high income, while urban resources rarely flow to rural areas, which intensifies the contradiction between urban and rural areas and makes it difficult for urban and rural economies to integrate and develop. To solve the problem of unsmooth urban-rural economic circulation and fill the shortcomings of rural development, we must not only use the "hand of the government" to invest more public resources in rural areas, but also use the "hand of the market" to guide the factors of production to gather in rural areas, so as to realize the efficient allocation of rural resources, promote the high-quality development of rural economy and make up for the shortcomings of long-term lagging rural economic development. Therefore, we must break down the institutional obstacles that affect the development of urban-rural integration, among which the most crucial thing is to deepen the reform of rural land system, truly attract more elements such as capital, talents, science and technology to flow to the countryside, leave the rural funds and labor force that may flow out in rural areas to combine with the land, enhance the value of rural land through the play of the market, realize the efficient allocation of resources, and provide sustained endogenous power for rural revitalization.

　　三是畅通公有制经济和非公有制经济循环。在我国基本经济制度下，各种所有制经济享有依法平等使用生产要素、公开公平公正参与市场竞争、同等受到法律保护的权利。党的十八届三中全会通过的《中共中央关于全面深化改革若干重大问题的决定》提出，要“废除对非公有制经济各种形式的不合理规定，消除各种隐性壁垒”；党的十八届五中全会强调要“鼓励民营企业依法进入更多领域，引入非国有资本参与国有企业改革”。但在现实中，公有制经济和非公有制经济之间依然存在着“隐性壁垒”，不少行业存在着民营企业不可逾越的“隔离墙”，有的领域则直接对民间投资“屏蔽”。公有制经济和非公有制经济循环不畅通，意味着资源难以实现更大范围的配置，资源配置的市场化程度降低，必然导致效率损失。2018年11月1日，习近平总书记在民营企业座谈会上指出，“公有制经济、非公有制经济应该相辅相成、相得益彰，而不是相互排斥、相互抵消”“要鼓励民营企业参与国有企业改革”。显然，只有把这些要求落到实处，破除公有制经济和非公有制经济之间的各种障碍，国民经济循环才能真正畅通。

　　总之，要实现高质量发展，必须加紧补齐关键短板，突破瓶颈制约，疏“堵点”、通“经络”，使国民经济焕发新活力。 （本文来源：经济日报 作者：中央党校（国家行政学院）习近平新时代中国特色社会主义思想研究中心 执笔：赵长茂）

Counterfeiter Wang Hai posted a post questioning the official response of Dalian in the investigation process of ＂100 acres of cherry tree death＂

　　Dalian, China, November 14 (Reporter Wang Song) On the 13th, professional counterfeiter Wang Hai posted on the Internet that since 2020, hundreds of acres of cherry trees have died after farmers used the cherry plant protection scheme of Dalian Dianlong Company; The post questioned the relevant investigation and disposal process of Dalian Agricultural and Rural Bureau. On the 14th, Dalian Agriculture and Rural Bureau answered the questions raised in Wang Hai’s release.

　　What Wang Hai posted on the Internet (screenshot)

　　Question 1: Excuse me, Director Xing Fang of Dalian Agriculture and Rural Bureau, why didn’t the special class set up by your bureau to deal with the death of cherry trees investigate the phytotoxicity of Dalian Dianlong Company?

　　In March, 2023, Dalian Special Class for Handling the Death of Cherry Tree in Wafangdian went deep into wafangdian city Dianlong Company, the involved enterprise, and investigated and verified 23 kinds of pesticides and 8 kinds of fertilizers sold since January 1, 2021 by consulting the sales ledger, checking the quality inspection report and taking samples for identification, and entrusted a third party to identify the quality of 15 kinds of pesticides in stock, and traced the quality inspection report of 8 kinds of pesticides and 8 kinds of fertilizers out of stock to the manufacturer. Judging from the inspection report and appraisal results, no quality problems have been found in the above pesticides and fertilizers sold by Dianlong Company.

　　On March 29th of the same year, the working class organized 7 experts from Northwest A&F University, Beijing Academy of Agriculture and Forestry, Shandong Academy of Agricultural Sciences and other units to form an expert group, and went to relevant orchards to carry out on-site investigation, guide sampling and expert judgment (a total of 5 orchards). In response to the problem of "copper ion phytotoxicity" reflected by the whistleblower, according to the expert’s suggestion, the city sent the sampling samples to the Environmental Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture and Rural Affairs (Tianjin) for testing the total copper and glyphosate content (pesticide residues). On May 6, 2023, the expert group made a comprehensive judgment. According to the field investigation, identification test and test report, the conclusion was given: the main cause of the damage symptoms of cherry tree branches, roots and trunk bark was caused by fungal diseases.

　　Question 2: Since 2020, farmers have used the cherries of Dalian Dianlong Company to solve the plant protection scheme, and hundreds of acres of cherry trees have died one after another. You didn’t go to the scene investigation the first time you received the report, and didn’t set up a special work class until this year. Is there anything strange in this?

　　According to the working rules, after receiving the report, the relevant departments of the territory are responsible for the investigation. The incident occurred in September, 2022, and its territory was wafangdian city. The relevant departments of wafangdian city will deal with it as soon as possible according to the law. First, on October 11, 2022, wafangdian city Agriculture and Rural Bureau filed an investigation on Dianlong Company’s alleged unauthorized modification of two kinds of fertilizer labels, and finally imposed an administrative penalty of 20,000 yuan. The work class carefully checked the relevant files. The main facts of the case were clear, the evidence was conclusive, the law was accurately applied, and the law enforcement procedure was legal. Wafangdian city Municipal Market Supervision Bureau received five complaints from informants about Dianlong Company on September 2, September 15 and October 20, 2022, and all of them responded within the prescribed time limit.

　　In order to verify and supervise the territorial work, the Dalian Municipal Government set up a special work class in March 2023, and went deep into wafangdian city to carry out a 9-day investigation and verification work, forming a work report and reporting it to the Dalian Municipal Party Committee and Municipal Government. After that, it was reported to the Liaoning Provincial Party Committee and the provincial government in the form of documents of the municipal party committee and the municipal government.

　　Question 3: This special class has not been publicized, and it has not been declared whether it has an interest in the investigated object, no instruments and equipment, no appraisal qualification, and no opinions from farmers. What makes it clear that the cherry tree died of fungal infection?

　　According to the requirements of the Regulations on the Openness of Government Information in People’s Republic of China (PRC), "the internal affairs information of administrative organs, including personnel management, logistics management, internal workflow and other aspects, may not be disclosed". The work class is a temporary organization for government agencies to handle internal work. Members are all staff of relevant departments, and there is no need for publicity as required. The relevant experts hired are authoritative experts in China, and the relevant testing institutions entrusted are qualified. During the investigation, the working class visited relevant farmers and enterprises, and the expert group hired was based on the on-site investigation, appraisal test and test report.

　　Question 4: After filming the forehead, the special class only took samples from cherry trees that had been dead for one or two years, and also entrusted fruit trees without appraisal qualification to do experiments on whether fungi could cause the death of living trees. When entrusting, the disease is used to set the tone first, misleading the fruit trees to draw the wrong conclusion that they are not qualified at all. The bacteria in the corpse can kill people, which proves that this person was killed by bacteria? No matter how you die, it is common sense that all kinds of bacteria that cause death may be detected on rotting corpses. Is this experiment meaningful?

　　On March 29th, 2023, the municipal work special class organized an expert group to carry out an on-site investigation on the death of cherry trees. The expert group learned about the symptoms of cherry trees on the spot with growers, and guided the on-site sampling of damaged branches, roots, trunk bark and rhizosphere soil of cherry trees in orchards. After the on-site investigation, the expert group held the first working meeting, and then sent the samples to the Environmental Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture and Rural Affairs (Tianjin) for detection of total copper and glyphosate, and the Fruit Research Institute of China Academy of Agricultural Sciences (Xingcheng, Liaoning) for detection of pathogenic bacteria. Among them, the Environmental Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture and Rural Affairs (Tianjin) is a ministerial-level professional quality inspection center in the field of agricultural ecological environment. In 2017, it became the first batch of national agricultural testing benchmark laboratories (pesticide residues), and the Fruit Research Institute of China Academy of Agricultural Sciences is a national scientific research institution, not a fruit research institute without appraisal qualification. After the two testing units respectively issued the Experimental Report on Pathogen Isolation and Identification of Cherry Samples in wafangdian city, Dalian and the Test Report (NO.KY030-2023), on May 6th, the municipal work class organized the expert group to hold another meeting. Based on the inspection and test report, the expert group focused on discussion, consulted the literature and standards, and obtained the comprehensive judgment opinions of experts.

　　Question 5: The death of these cherry trees is characterized by yellowing and shedding of leaves, which is not a symptom of fungal infection at all. Why didn’t the special class investigate the problem of drug injury? Afraid of what?

　　After the on-the-spot investigation on March 29th, 2023, the expert group held the first working meeting of judgment, and sorted out the main symptoms found in the on-the-spot investigation as follows: the symptoms of branch withered; The damaged parts of the trunk show partial cuticle cracking, ulcer, rot and gumming, which may cause the whole tree to die in severe cases. Some plants showed symptoms of bolting, and a few plants showed symptoms of neck rot. According to the symptoms, the main causes are infectious diseases and non-infectious diseases. In order to further analyze the reasons, the expert group suggested that the sampled samples should be subjected to disease identification and pesticide residue determination, and finally the "Experimental Report on Pathogen Isolation and Identification of Cherry Samples in wafangdian city, Dalian" and "Test Report (NO.KY030-2023)" were formed, and the expert group gave judgment opinions according to the identification results.