After driving for five hours, they arriv

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问题选择题

After driving for five hours, they arrived at they thought was the place they had been dreaming of.

A．what

B．that

C．which

D．where

答案

答案：A

考查名词性从句。arrived at 后事一个宾语从句，they thought 做插入语，从句中缺少主语，所以用what。

单项选择题

在毒理学研究中，吸入染毒的剂量单位表示为（）。

A.mg／kg

B.mg／m

C.mg／L

D.mg／m

E.mg／g

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