图为处于稳定状态的生态系统中构成食物链的四种生物在某一时间内的相对数量关系.若有害物质进入该食物链则体内积累有害物质最多的可能是a甲b Template




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tomski图为处于稳定状态的生态系统中构成食物链的四种生物在某一时间内的相对数量关系.若有害物质进入该食物链则体内积累有害物质最多的可能是a甲b coloring