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问题 单项选择题

社会管理的源头者说基础工作，是改善民生。社会管理要搞好，必须加快推进保障和改善民生为重点的（）。

A.安居工程

B.群众工作

C.改革开放

D.社会建设

答案

参考答案：D

选择题

— There were five people in the car but they still took me.

— It _____ a comfortable journey. [ ]

A. can't be

B. shouldn't be

C. mustn't have been

D. couldn't have been

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单项选择题

生理自我基本成熟的时问在（）。

A.1岁左右

B.3岁左右

C.6岁左右

D.9岁左右
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