based on the analysis of a-share listed companies based on the empirical evidence of listed companies based on Chinese listed companies Report on the quality index of Chinese listed companies based on China's listed companies 金融生态环境、董事网络与债务融资治理效应：基于A股上市公司的分析：based on the analysis of a-share listed companies based on the analysis of field theory based on the analysis of DSGE framework based on the analysis of government management based on the data of listed airlines