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    [科技报告]   Temkin, K.   Hong, G.   Davis, L.   Bavin, W.        共126页
    摘要 : Since the first charter school began operating in 1991 in Minnesota, the number of charter schools has grown rapidly from 250 in 1995 to about 4,000 by 2007. Charter schools now enroll more than 1.1 million students in the United ... 展开

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