57.生态系统中能量在沿着食物链流动过程中逐级递减的原因不包括 A.每个营养级生�活动的维持总要消耗能量 B.不是每个营养级中总有一部分能量被 Template




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tomski57.生态系统中能量在沿着食物链流动过程中逐级递减的原因不包括 a.每个营养级生�活动的维持总要消耗能量 b.不是每个营养级中总有一部分能量被 coloring