位于第2腰椎棘突下水平线,由内而外依次为 ______、______、______三穴。
参考答案:命门 肾俞 志室
The salespeople said they hadn’t overcharged customers, but the police’s report showed that the practice did ______.
A.appear
B.arise
C.perform
D.exist
在汉、唐时期对外贸易中都占重要地位的物品是()。
A.丝绸
B.瓷器
C.纸张
D.茶叶