主要说明选题的目的和意义、相关研究动态和研究现状。
This part of showing this article selects a topic goal and significance, correlation research tendency and research present situation.
绪论部分交待了选题的目的和意义，研究的对象和方法等。
The introduction sets out the purpose and significance of the topic, the objects and methods of research, and so on.
主要介绍了选题的目的和意义、国内外研究动态、研究方法三个方面的内容。
Mainly introduces the topics of the purpose and significance of domestic and international research trends, research methods.
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