现有如图所示的实验装置请回答问题 1在加入药品之前应对实验装置进行 2可用于实验室制备和收集o2的一套装置是 写出——青夏 Template




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tomski现有如图所示的实验装置请回答问题 1在加入药品之前应对实验装置进行 2可用于实验室制备和收集o2的一套装置是 coloring