Jack needs ______ and needn’t ______ too much.[ ]

A. exercise more , to sleep          

B. to exercise more , sleep

C. more exercise , to sleep          

D. have more exercise, sleep

股骨颈骨折的常见体征是患肢多呈

A．屈曲、内收、内旋畸形

B．伸直、外展、内旋畸形

C．短缩、内旋、外展畸形

D．短缩、外旋、内收畸形

E．屈曲、外展、内旋畸形