题目内容

Which of the following is the most appropriate title for the passage（）

A. The Communal Life of Bees
B. The Structure of the Bees
C. The Organization of Insect Colonies
D. The Life of Social Insects

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We______her letter last week. We don't know what has happened to her.

A. must receive
B. must have received
C. ought to receive
D. ought to have received

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A. release
B. conceal
C. discover
D. expose

The mystery guest on the show is ______ other than the president.

A. on
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C. not
D. nothing

下列不属于药品库要求的是( )。

A. 良好的通风
B. 防爆电源
C. 灭火装置
D. 良好的光照