This paper applies the method of documents, investigating method interviewing method, mathematic statistics method, logical analysis method etc.
本文运用的研究方法主要有：文献法、问卷调查法、访谈调查法、数理统计法、逻辑分析法。
This paper applies the method of documents, investigating method interviewing method, mathematic statistics method, logical analysis method etc.
本文运用的研究方法主要有：文献法、问卷调查法、访谈调查法、数理统计法、逻辑分析法。
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