对呼吸无明显抑制作用的静脉麻醉药是

A．硫喷妥钠

B．普鲁泊福

C．氯胺酮

D．依托咪酯

E．羟丁酸钠

Woman: Did you have much trouble with the exam Man: Not really. Question: How was the man doing with the exam

A．He didn't have much trouble.

B．He is sure that he did perfectly in the exam.

C．He did very badly in the exam.

D．He didn't take the exam.