一些食品常用袋装生石灰做干燥剂，生石灰属于 [ ]
A. 酸
B. 碱
C. 盐
D.氧化物
答案：D
—When will he leave for Shanghai?
—As soon as he _______ his work. [ ]
A. finished
B. will finish
C. is finishing
D. finishes
胸腔镜肺活检术的适应证包括（）
A.间质性肺病
B.中心型肺结节
C.周围型肺小结节
D.弥漫性肺疾病
E.肺周围型肿块，直径>5cm
