如图中的abc表示3个自然条件有差异的地区地区间的�粗线表示存在地理隔离.a地区某些个体由于某种原因开始分布到bc地区并逐渐形成两个 Template




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tomski如图中的abc表示3个自然条件有差异的地区地区间的�粗线表示存在地理隔离.a地区某些个体由于某种原因开始分布到bc地区并逐渐形成两个 coloring