要提高一个生态系统维持平衡的能力最有效的是 A.增加食物�中的生物种类b.改变环境中的非生物因素c.减�最高消费者的数目d.减�分解者的 Template




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tomski要提高一个生态系统维持平衡的能力最有效的是 a.增加食物�中的生物种类b.改变环境中的非生物因素c.减�最高消费者的数目d.减�分解者的 coloring