Research on internal control mechanism and mode of guarantee enterprise group Research on internal control and risk pre-warning mechanism of state-owned enterprises in China Research on centralized procurement management of enterprise group Dan bao qi ye ji tuan nei bu kong zhi ji zhi ji qi mo shi yan jiu/: Research on internal control mechanism and mode of guarantee enterprise group, 并列题名:Research on internal control and risk pre-warning mechanism of state-owned enterprises in China Research on strategic coordination mechanism of adaptive enterprise Research on the financing management and performance of enterprise group