如图表示人体肺泡内的气体交换.请据图回答下列问题1人体内气体交换是通过气体的 作用完成的.2吸气时图中�表示的气体是 �表示的 Template




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tomski如图表示人体肺泡内的气体交换.请据图回答下列问题1人体内气体交换是通过气体的 作用完成的.2吸气时图中�表示的气体是 �表示的 coloring