某化学实验小组同学利用以下装置制备氨气,并探究氨气的性质部分仪器已略去。请回答: 1收集氨气时,请你选择氨气的进气口 “a”或“b Template




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tomski某化学实验小组同学利用以下装置制备氨气,并探究氨气的性质部分仪器已略去。请回答: 1收集氨气时,请你选择氨气的进气口 “a”或“b coloring