下图表示人体细胞与外界环境之间进行物质交换的过程ⅠⅡⅢⅣ表示能直 接与内环境进行物质交换的4种器官或系统��是有关的生理过程下列 Template




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tomski下图表示人体细胞与外界环境之间进行物质交换的过程ⅠⅡⅢⅣ表示能直 接与内环境进行物质交换的4种器官或系统��是有关的生理过程下列 coloring