4.下列是初中化学中的一些常见实验.请回答.1a实验中导致实验结果偏小的原因可能是红磷量不足.2b实验中铜片上的白磷燃烧而红磷不 Template




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tomski4.下列是初中化学中的一些常见实验.请回答.1a实验中导致实验结果偏小的原因可能是红磷量不足.2b实验中铜片上的白磷燃烧而红磷不 coloring