"Must I return the book this morning?" "

No, you _____. But you _____ to return it before next Monday." [ ]

A. needn't, must

B. mustn't, can

C. mustn't, may

D. needn't, need

去大脑皮层综合征的主要表现是（）

A.意识丧失，肌张力增高，四肢伸直

B.意识丧失，肌张力增高，上肢屈曲，下肢伸直

C.意识丧失，肌张力增高，上肢伸直，下肢屈曲

D.意识丧失，肌张力增高，四肢屈曲

E.意识丧失，肌张力降低