如图是人体血液在体循环中流经组织器官时�生的气体交换示意图请回答以下问题1图中ab两物质分别表示氧气和二氧化碳气体.2经过气体 Template


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tomski如图是人体血液在体循环中流经组织器官时�生的气体交换示意图请回答以下问题1图中ab两物质分别表示氧气和二氧化碳气体.2经过气体 coloring