— I wonder if I _____ smoke here.

— No, you ______ . Couldn't you see the sign "NO SMOKING" on the wall?[ ]

A. can; needn't      

B. may; mustn't      

C. must; can't      

D. shall; won't

一男性病人，45岁，出现鼻塞、流脓涕，咳嗽、痰血，胸片见双肺中下肺野有渗出病灶。有低热，关节痛，怀疑为“韦格纳肉芽肿”。下述哪一项检查对诊断有提示意义（）

A.p-ANCA

B.c-ANCA

C.ANA

D.嗜酸性粒细胞大于10%

E.ESR