.下图所示的一组实验可用于研究燃烧条件下列说法中正确的是 A.此组实验烧杯中的热水只起提高温度的作用b.图1中铜片上的白磷和红磷对比说明 Template




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tomski.下图所示的一组实验可用于研究燃烧条件下列说法中正确的是 a.此组实验烧杯中的热水只起提高温度的作用b.图1中铜片上的白磷和红磷对比说明 coloring