First, the thesis makes a brief argumentation on the research contents, purpose and practical significance.

论文首先对研究的内容、目的、实践意义进行简要的论述。

youdao

First, the thesis makes a brief argumentation on the research contents, purpose and practical significance.

论文首先对研究的内容、目的、实践意义进行简要的论述。

youdao