下图是某同学设计的一组实验装置请分析回答问题1此组实验装置能构成对照实验的是 2将快要熄灭的细木条插进甲装置试管收集的气体中 Template




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tomski下图是某同学设计的一组实验装置请分析回答问题1此组实验装置能构成对照实验的是 2将快要熄灭的细木条插进甲装置试管收集的气体中 coloring