Some require how many balls to pad in a specified time, some teachers test the rate of serving over the net, some test the catch, and so on.
Elective courses of college physical education are mostly ball games, including basketball, football, volleyball, badminton, tennis, table tennis, Tai Ji Chuan and aerobics, and swimming lessons in summer. College physical education elective courses are generally conducted on the school's educational administration website, and the next semester is selected in this semester.