中央型肺癌胸内淋巴结转移多见于哪组淋巴结()
A.主动脉弓旁
B.上腔静脉后
C.主肺动脉窗
D.气管旁及双肺门
E.气管分叉下
参考答案:A, B, C, D, E
I don't think I'll need any money, but I'll bring some ____. [ ]
A. at last
B. in case
C. once again
D. in time