This study adopted the method of literature, survey and case analysis.
本研究主要采用资料文献法、调查法、案例分析法等方法进行阐述。
The research methods include of this study is literature research method, interviews and qualitative analysis.
本研究采用的研究方法包括：文献研究法、访谈法和定性分析法。
Method of literature statistical analysis was applied.
研究方法：文献统计分析法。
Method of literature statistical analysis was applied.
研究方法：文献统计分析法。
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