下列关于生态系统的描述正确的一项是a.一片森林中的所有动物植物微生物构成森林生态系统b.生态系统中的物质和能量是沿着食物链和食物�流动 Template




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tomski下列关于生态系统的描述正确的一项是a.一片森林中的所有动物植物微生物构成森林生态系统b.生态系统中的物质和能量是沿着食物链和食物�流动 coloring