The possibility and executive strategy that chinese would becoming a kind of powerful language . zhang yan hua 汉语成为强势语言的可能性及其实施策略张艳华
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The method of the second cooperation investigating the entire methods arid the concrete methods of the second cooperation . postgraduate : yan hua major : agricultural economy and management supervisor : prof 第二次农村合作化的对策措施采用理论分析和对策研究相结合的方法，制定实现第二次农村合作化的总体措施和具体措施。
