下列对种群特征的概念图分析正确的是 A.a为年龄组成b为性别比例b.“j 型增长的种群中没有死亡和迁出c.预测种群数量未来变化的主要依据 Template




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tomski下列对种群特征的概念图分析正确的是 a.a为年龄组成b为性别比例b.“j 型增长的种群中没有死亡和迁出c.预测种群数量未来变化的主要依据 coloring