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Qinghai Lake is the largest saline lake in China. The change in the lake volume is an indicator of the variation in wate......
基于丹尼森算法运用省区面板数据测算了1990-2008年教育对区域农村经济增长的贡献率,并进行区域差异比较。结果发现:(1)区域间教育对......