以下是关于【美国经济发展】的公开课/优质课视频，一共142个
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39:0326《第三章 区域自然资源综合开发利用-第二节 流域的综合开发──以美国田纳西河流域为例》人教版高二地理必修三-甘肃定西市_通渭县-胡伯平
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41:0385《第三章 区域自然资源综合开发利用-第二节 流域的综合开发──以美国田纳西河流域为例》人教版高二地理必修三-甘肃酒泉市-王凌志