如图是人体内的组织与外界环境进行气体交换的全过程示意图.据图分析作答1图中“二 表示 的气体交换过程.该过程是通过 实现的.2标号1 Template




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tomski如图是人体内的组织与外界环境进行气体交换的全过程示意图.据图分析作答1图中“二 表示 的气体交换过程.该过程是通过 coloring