The Impacts of Expanding Access to High-Quality Preschool Education
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President Obama's "Preschool for All" initiative calls for dramatic increases in the number of 4 year olds enrolled in public preschool programs and in the quality of these programs nationwide. The proposed program shares many characteristics with the universal preschools that have been offered in
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美国国家经济研究局创建时间：
2013-12-01
