According to the experience of searching Baidu and the national students' physical health standard, the score standard of pull-ups in the senior high school entrance examination is 10. After hearing the numbers, the examinee walks under the bar and jumps, holding the bar with both hands about shoulder width, forming a straight arm suspension. After resting, start to do the first pull-up action; Bend your arm and pull your body up until your chin exceeds the upper edge of the bar, and complete it once after restoring the straight arm suspension; If the action does not meet this specification, it is not counted.
The most effective and convenient way to practice upper limb strength is to do push-ups. Just do it at home in spare time every day. If you can do it for a month every day, there will be obvious improvement.