12.农田生态系统中假设有两条主要的食物链 如果有人大量捕捉蛙短期内对该个生态系统造成的影响是 A.有利于生态系统的平衡 B.水稻虫害 Template




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tomski12.农田生态系统中假设有两条主要的食物链 如果有人大量捕捉蛙短期内对该个生态系统造成的影响是 a.有利于生态系统的平衡 coloring