24小时尿标本的留取时间是( )

A:5am排空膀胱后至次晨5am B:6am排空膀胱后至次晨6am C:7am排空膀胱后至次晨7am D:8am排空膀胱后至次晨8am E:9am排空膀胱后至次晨9am

氨氯地平的最佳服用时间( )。

A:7.AM B:11.AM C:3.AM D:7.AM E:10.AM

It ______ I who ______ leaving for London.

A:is; is B:am; is C:is; am D:am; am

It ______ I who ______ leaving for London.

A:is; is B:am; is C:is; am D:am; am

— Hi, I ____ Tony. _____ you Helen? — Yes, I am.

A: am, Am B: am, Is C: am, Are D: is, Are

I ________ a girl. My name _________Lis

A: A. am; am B: am; are C: am; is D: is; am