Research on information disclosure of charity organization in China Study on information disclosures of companies on GEM in China research on trust in charitable organizations in China Research on the information disclosure quality of listed companies 并列题名：Study on information disclosures of companies on GEM in China Research on financial information disclosure quality for charitable organizations Study on the supervision of information disclosure of listing corporation in China Research on the information disclosure system and the validity of listed companies in China research on international exchange and cooperation of education in China Study on the supervision of information disclosure of listing corporation in Chaina