---May I look at the menu for a little while?

--- Of course, _______, sir.

A．don’t worry

B．it doesn’t matter

C．enjoy yourself

D．take your time

第一个投放市场的HMG-CoA还原酶抑制剂是

A．硝苯地平
B．氯贝丁酯
C．尼群地平
D．硝酸异山梨酯
E．洛伐他汀