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【简答题】
在发生雷暴时，人体最好离开可能传来雷电侵入波的线路和设备（）米以上。
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皮皮学刷刷变学霸
举一反三
【单选题】Miss Li ___as a secretary for five years in the company, and now she is general manager of it.
A.
serves
B.
served
C.
has served
D.
had served
【单选题】Miss Li ___ as a secretary for five years in the company, and now she is general manager of it.
A.
has served
B.
had served
C.
served
D.
serves
【单选题】14-53. Which of the following italicized parts is used as an object complement?
A.
The front door remained locked
B.
The boy looked disappointed .
C.
Nancy appeared worried .
D.
He seemed to have no money left .
【简答题】财政政策对增加均衡国民收入效果较好的条件是什么？
【简答题】交流工频安全电压的上限值是指在任何情况下,两导体间或任一导体与地之间的电压都不得超过()V。
【简答题】交流工频安全电压的上限值,在任何情况下,两导体间或任一导体与地之间都不得超过() V 。
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