Research on the refinancing problems of Chinese B-share listed companies 并列题名：Research on the refinancing problems of Chinese B-share listed companies Research on the Financing Behavior of Xizu Listed Companies Research on the performance of Chinese agricultural listed companies Research on the debt financing structure of listed companies Research on the influencing factors of default risk of Chinese listed companies Research on M&A performance of Chinese listed companies Research on the family-controlled tunneling behavior of Chinese private listed companies Research on share swap merger of China's listed companies Research on the issues of earning preannouncement in Chinese listed companies