Evolution mechanism and management mode of high-tech virtual enterprises 并列题名：Evolution mechanism and management mode of high-tech virtual enterprises dntormation management mode of virtual enterprise Operation and management of virtual enterprise 并列题名：Operation and management of virtual enterprise Game theory and management of electrical enterprises Mechanism and model of the growth of high-tech enterprises Valuation and management for human capital of enterprises evolution of human resource management system in Chinese enterprises 并列题名：Game theory and management of electrical enterprises