我国东北的亚寒带针叶林与华北的温带落叶阔叶林景观差异反映了

我国东北的亚寒带针叶林与华北的温带落叶阔叶林景观差异反映了（）

A.南方与北方的植被差异 B.南方与青藏地区植被差异

C.北方与西北地区植被差异 D.北方地区的内部植被差异

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我国东北的亚寒带针叶林与华北的温带落叶阔叶林景观差异反映了

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