下列有关城市生态的叙述不正确的是 A.该系统的主体是人 b.它是一个人工的生态系统 c.和其它生态系统相比受人类活动的影响最为强烈 d Template




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tomski下列有关城市生态的叙述不正确的是 a.该系统的主体是人 b.它是一个人工的生态系统 coloring