The major goal of physical education programs in schools is to help all children become physically fit. But only a small proportion of children ever participate in team sports. Moreover, team sports usually do less to encourage fitness in participants than do physical education programs that focus directly on aerobic exercise.
The considerations above, if true, could be used most effectively to argue against
A．the use of in-school physical education programs to encourage lifelong fitness habits in students.
B．the participation by young children in community sports teams.
C．schools’ relying heavily on aerobic exercise programs to help all children become physically fit.
D．the use of a large part of a school’s physical education curriculum for team sports.
E．(E) the use of team sports in schools as an occasional activity for talented athletes.
， 则地球公转要加快约
，可知月球质量是地球质量的
