ICONTENTS目 录摘要....................................................................................................................................IAbstract...........................................................................................................................II第 1 章绪论.......................................................................................................................11.1 研究背景和选题意义..........................................................................................11.1.1 课题研究的背景..............................................................................................11.1.2 课题研究的意义..............................................................................................21.2 国内外研究现状综述..........................................................................................31.2.1 预测的主要方法..............................................................................................31.2.2 国内研究现状..................................................................................................51.2.3 国外研究现状..................................................................................................61.2.4 研究评述..........................................................................................................81.3 研究内容和文章结构..........................................................................................81.3.1 本文的研究内容..............................................................................................81.3.2 本文的文章结构..............................................................................................81.4 本文的重点、难点和创新点............................................................................101.4.1 本文的重点和难点........................................................................................101.4.2 本文的创新点...............................................................
