如图5 41是某湖泊的能量�字塔则a.图中共有四级消费者b.b中的生物能量比a中的多c.c中的生物一定是一个种群d.a中的生物是生态系统的 Template




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tomski如图5 41是某湖泊的能量�字塔则a.图中共有四级消费者b.b中的生物能量比a中的多c.c中的生物一定是一个种群d.a中的生物是生态系统的 coloring