This paper is divided into four chapters altogether: chapter one: Research background and theme.
本文共分为四个章节：第一章：研究背景及主题。
The first chapter is the introduction which shows the background of this study, the theme of this paper, the research methodology, theoretical and applied significance.
第一章为引言，说明本文的研究背景，提出本文的主题，指出本文的研究方法及理论、应用意义。
The full text structured as follows : chapter I is the background and research ideas, bringing forward the central theme of this paper;
全文结构如下：第一章阐述了研究背景和研究思路，提出本文的中心论题；
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