题干

在使用分液漏斗进行分液时,正确的操作是(    )

A:上层液体经漏斗下方活塞放出

B:分离液体时,将漏斗拿在手上进行分离

C:分离液体时,分液漏斗上的小孔与大气相通时打开活塞

D:分液漏斗中盛装的是液体,振荡后不必扭开活塞把气体放出

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答案(点此获取答案解析)

C

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汪国真

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                                                                                                     江南雨

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                                                                                                     是稻田夕阳晚照的竹笛


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