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Changes in the U.S.2010 National Security Strategy——Based on Frequency of Word Usage
作者单位:Yang Qiaoyan(Nanjing University);Guo Qi(China Institutes of Contemporary International Relations) 
摘    要:The National Security Strategy of the U.S. is an important document for understanding U.S. national security policy. This article uses Antconc software to analyze high-frequency word usage patterns in six U.S. National Security Strategy documents from 1990 to 2010. From the micro level of language use, we try to interpret the 2010 U.S. National Security Strategy and explore Washington's strategic motives.

关 键 词:安全战略  美国  Word  变迁  频率  国家安全政策  nc软件  华盛顿
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