Research on contract issues in developing mixed ownership of state-owned enterprise in China Research on property diversification of state-owned enterprises in China Research on internal control and risk pre-warning mechanism of state-owned enterprises in China Research on deepening mixed ownership reform of state-owned enterprise in the new era 并列题名：Research on internal control and risk pre-warning mechanism of state-owned enterprises in China Research on construction of value creation system of state-owned enterprises Research on the mechanism and path for promoting green economic development of state-owned enterprises in China Research on green auditing mechanism of state-owned enterprises 并列题名：Research on property diversification of state-owned enterprises in China 并列题名：Research on deepening mixed ownership reform of state-owned enterprise in the new era