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2019年中考地理七下第六章北方地区（第2课时）复习课件.ppt

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第二课时 黄土高原 北京,考法 黄土高原水土流失严重的原因与治理措施,(2018福州模拟)我国是水土流失较严重的国家，水土流失状况受地形、气候、土壤等自然因素和人类活动的综合影响。下图中三地的生态建设活动，合理的是( ),A修筑挡土坝，修筑梯田，种植优质牧草 B修筑梯田，退耕还林还草，修筑挡土坝 C开挖鱼塘，打坝淤地，种植山杏 D开挖鱼塘，种植谷子，建设人工草场,

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