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什么叫山地?即陆地表面高度较大、坡度较陡的陇起地貌,以较小的峰顶面积区别于高原,又以较大的高度区别于丘
What is the mountain? That is, the surface of the land is relatively large and the steeply sloped Longqin landform is distinguished from the plateau by the smaller peak area, and is distinguished from the mound by a greater height