I was crazy because it _____me two hours to get_____ in the restaurant the other day.

A．took, served

B．cost, serving

C．took , serving

D．spent, served

具有分离麻醉现象的全麻药（）

A.恩氟烷

B.异氟烷

C.氧化亚氮

D.氯胺酮

E.丙泊酚