Many students are playing sports on the playground.          are playing soccer;          are running and

jumping.   [ ]

A. Others; the others

B. Some; other

C. Some; others

D. One; the other

冈上肌断裂时，上臂哪种活动功能受限？（）

A.外展

B.内收

C.外旋

D.内旋

E.前屈