调查木本植物种群密度时不具有代表性的做法是 A.随机取样b.样方面积为1m2c.样本数量足够大d.调查期无大量砍伐——青夏教育精英家教�—— Template




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tomski调查木本植物种群密度时不具有代表性的做法是 a.随机取样b.样方面积为1m2c.样本数量足够大d.调查期无大量砍伐——青夏教育精英家教�—— coloring