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甲:试管中水位下降明显,袋内 壁水珠多。 乙:试管中水位下降不明显, 袋内壁水珠极少。

实验现象:. 甲 乙. 甲:试管中水位下降明显,袋内 壁水珠多。 乙:试管中水位下降不明显, 袋内壁水珠极少。.

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甲:试管中水位下降明显,袋内 壁水珠多。 乙:试管中水位下降不明显, 袋内壁水珠极少。

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  1. 实验现象: 甲 乙 甲:试管中水位下降明显,袋内 壁水珠多。 乙:试管中水位下降不明显, 袋内壁水珠极少。

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