某学习小组的同学做完木炭还原氧化铜的实验后观察到固体只有�量为红色�色成分含量较多于是决定对木炭还原氧化铜后的固体成分进行探究.请你参加 Template




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tomski某学习小组的同学做完木炭还原氧化铜的实验后观察到固体只有�量为红色�色成分含量较多于是决定对木炭还原氧化铜后的固体成分进行探究.请你参加 coloring