第一章首先说明选题背景、研究的必要性和意义、研究思维和方法、写作思路和内容体系等。
Firstly, this part figures these topics about the background, necessity and significance, thinking and methods for research, writing ideas and content system of the paper.
绪论部分阐释本课题研究的必要性和意义，介绍课题研究的范畴和方法，以此搭建起整篇文章的框架和基础。
The preface is an overall discussion of necessity and significance of topic, category and methods of research to build the frame and the foundation of the whole dissertation.
绪论明确了研究的必要性和研究意义、研究方法。
The prolegomenon part shows the need of research, research significance and research methods.
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