—Look ! The banana is too big. Why don't you _____ first?

—That sounds a good idea![ ]

A. cut up it

B. cut it up

C. cut up them

D. cut them up

氯胺酮的特点是（）

A.降低颅内压作用强

B.镇痛作用强

C.抑制呼吸作用强

D.抑制循环作用强

E.肌松作用强