根据以下选项,回答题:A.5%KOHB.水合氯醛 C.醋酸 D.蒸馏水 E.80%~90%乙醇 用于观察淀粉粒的是

根据以下选项,回答题:A.5%KOHB.水合氯醛 C.醋酸 D.蒸馏水 E.80%~90%乙醇 用于观察淀粉粒的是

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An increasing number of families spertd more money on house

An increasing number of families spertd more money on houses in a good school

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听音频,回答下列问题:

听音频,回答下列问题:A.Peaceful. B.Considerate. C.Generous. D.Cooperative.

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