Theoretical and practical study of the social security budgeting 并列题名：Theoretical and practical study of the social security budgeting Theoretical and practical study of securities lending Theoretical and practical study on governmental hospital auditing 并列题名：Theoretical and practical study on governmental hospital auditing Theoretical and practical study of insurance enterprise conglomeration theoretical and empirical study of the Pearl River Delta region 并列题名：Theoretical and practical study of securities lending Theoretical and practical study on the planning of non-constructional land Theoretical and practical study on the construction and planning of urban forest