The humor ifi the office can mainly__________ .

The humor ifi the office can mainly__________ .A.reduce the working hour B.make

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In outer space,the absence of air is responsible for________

In outer space,the absence of air is responsible for__________ .A.the brightness

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根据以下内容回答题:The first astronaut to walk in space,Leonov,and hi

根据以下内容回答题:The first astronaut to walk in space,Leonov,and his companion,Belaiev

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According to the text,the best host__________ .

According to the text,the best host__________ .A.tries his best to make his gues

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下列关于流水施工的表述中,正确的有(  )。

下列关于流水施工的表述中,正确的有(  )。 A.流水施工工期就是整个建设工程的总工期 B.工艺参数主要是用以表达流水施工在空间布置上开展状态的参数 C.流水步

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