生态系统中能量流动逐级递减的原因是 A各营养级的生物因�吸而消耗相当大的一部分能量 b各营养级的生物中总有一部分未被下一个营养级的生物所 Template




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tomski生态系统中能量流动逐级递减的原因是 a各营养级的生物因�吸而消耗相当大的一部分能量 b各营养级的生物中总有一部分未被下一个营养级的生物所 coloring