治疗阴虚火旺所致的齿痛、口疮，常选用的药物是
A．郁金B．苏木C．降香D．牛膝E．穿山甲
参考答案：D
—You see, a man is cutting a tree on the moon.
—It _________ be true. The teacher says there is no air on the moon. [ ]
A. can't
B. may not
C. shouldn't
D. mustn't
旅游团抵达后，有旅游者说自己是回民，要去清真餐厅用餐，导游应（）。
A.拒绝
B.与餐馆协商
C.尽量满足
D.餐费自理
E.原餐费退还
