对诊断最重要的检查是

A．尿常规

B．尿脱落细胞

C．膀胱镜+活检

D．IVP

E．CT

— Remember to turn off the lights before leaving the classroom, children.

—         .

A．OK, we will.

B．Yes, we do.

C．It doesn’t matter.

D．You are right.