如下图表示人体内的细胞与外界环境之间进行物质交换的过程abcd表示直接与内环境进行物质交换的四种器官��是有关的生理过程据图 Template




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tomski如下图表示人体内的细胞与外界环境之间进行物质交换的过程abcd表示直接与内环境进行物质交换的四种器官��是有关的生理过程据图 coloring