下列与移位菌群失调原因无关的是()
A.不适当使用抗菌药物
B.外科手术
C.插管或介入治疗
D.免疫功能下降
E.细菌结构变化
参考答案:E
(2013·皖南八校三次联考)Our English teacher often tells us that the meaning of a new word may be ________ according to the given context.
A.picked out
B.ruled out
C.brought out
D.taken out
属于ⅠB类药()
A.奎尼丁
B.美托洛尔
C.利多卡因
D.胺碘酮
E.维拉帕米