--Haven't you seen Mr. Wilson at the lecture?

--Yes, but he had left _________ I could ask him any questions.

A．when

B．before

C．after

D．as

氯丙嗪对内分泌系统的影响错误的是

A．促进生长激素的分泌

B．抑制促皮质激素的分泌

C．引起 * * 肿大及泌乳

D．抑制促性腺释放激素的分泌

E．减少下丘脑释放催乳素抑制因子