-
通过文献资料研究法、社会调研法、系统分析法等方法进行研究；
The research was carried out by methods of literature study, social investigation and systematic analysis.
youdao
-
通过文献资料研究法、社会调研法、系统分析法等方法进行研究；
The research was carried out by methods of literature study, social investigation and systematic analysis.
youdao