题目内容

26()

A. before
B. after
C. in front of
D. behind

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机体受药物刺激发生异常免疫反应,称之为

A. 副作用
B. 特异质反应
C. 毒性反应
D. 变态反应
E. 后遗效应

We are happy()we are not very rich.

A. however
B. though
C. but
D. even if

Teacher: Where is Tom this morningJohn: He’ s got a cold.Teacher: ()

服务水平的高低将决定物流企业是否容易获得客户的认可。( )

A. 对
B. 错

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