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  • 颁布单位:[University of Alberta] |  颁布时间:1981 |  实施时间:1981 |  学科分类:[Academic, achievement, Poor, children--Education, Students--Social, conditions, Students--Economic, conditions, Academic, achievement--Effect, of, unemployment, on, Unemployed--Attitudes, Parent, and, child, Children, with, social, disabilities--Education]
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