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问题 单项选择题

党的十一届三中全会作出了把工作重点转移到（）上来的战略决策。

A.经济建设

B.政治建设

C.文化建设

D.社会建设

答案

参考答案：A

选择题
I called Hannah many times yesterday evening, but I couldn't get through. Her brother ____ on the phone all the time!

A. was talking
B. has been talking
C. has talked
D. talked
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单项选择题

开挖沟槽设支撑时，撑杆间距一般为（）m。

A、0.5

B、1

C、1.5

D、2
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