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  • Longitudinal Survey on Rural Urban Migration in China
        项目分类: 社会经济     关键字:      执行时间: 2008-2009

  • Major Power Interactions with Less Developed Countries, 1959-1965
        项目分类: 社会治理     关键字: Communist Party, developing nations, economic aid, economic indicators, exports, freedom of the press, imports, industrial nations, international affairs, news media, party membership, political influence, population estimates, students, technology, trade,     执行时间: 1959-1965

  • Military Defense Expenditure Data, 1948-1970
        项目分类: 社会治理     关键字: defense spending, government expenditures, military expenditures, nations,     执行时间: 1948-1970

  • National Memberships in International Nongovernmental Organizations, 1966
        项目分类: 社会变迁     关键字: international cooperation, international organizations, international relations, memberships, nations, nongovernmental organizations,     执行时间: 1966

  • One Percent Sample of 1990 Census
        项目分类: 人口     关键字:      执行时间: 1990

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