— Are they on the table?
— ______________, they aren't. [ ]
A. Yes
B. No
C. OK
答案:B
对于原发性肺结核,下述哪一项是恰当的()
A.主要经支气管播散
B.常见的死因是结核性脑膜炎
C.仅发生于儿童
D.不经治疗难以痊愈
E.急性全身播散性结核不如继发性结核常见