如图是人体内的气体交换过程示意图据图回答.1人体内的气体交换包括a和b两个过程.2图中�表示氧气的扩散过程�表示二氧化碳的 Template




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tomski如图是人体内的气体交换过程示意图据图回答.1人体内的气体交换包括a和b两个过程.2图中�表示氧气的扩散过程�表示二氧化碳的 coloring