— How often do you eat out?

—         ,but usually once a week.   [ ]

A. Have no idea    

B. It all depends    

C. As usual    

D. Cenerally speaking

肺癌在较大支气管内长大后常出现（）

A.声音嘶哑

B.上腔静脉梗阻

C.大咯血

D.痰量增多

E.刺激性咳嗽