某校化学小组学生为了研究炼铁的原理用一氧化碳与氧化铁反应按下图进行实验.1实验开始时打开k1关闭k2通入一氧化碳其目的是 Template




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tomski某校化学小组学生为了研究炼铁的原理用一氧化碳与氧化铁反应按下图进行实验.1实验开始时打开k1关闭k2通入一氧化碳其目的是 coloring