下列各项中对实现池塘中某种鱼类的可持续利用最有意义的是 A.池塘中该种鱼的总数 b.调查该种鱼类的所有生态因素 c.调查该种鱼类 Template




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tomski下列各项中对实现池塘中某种鱼类的可持续利用最有意义的是 a.池塘中该种鱼的总数 b.调查该种鱼类的所有生态因素 coloring