—Could you tell me how to go to the restroom?

—______________.

[ ]

A. Yes, I can

B. I could

C. Sure

D. I could tell you

关于肾癌，下列哪种说法不正确（）

A.肾盏受压、破坏

B.静脉肾盂造影可阴性

C.可继发肾积水

D.肿瘤无钙化

E.临床上以无痛性血尿及包块为主