Research on the management problems of food quality and safety in China 并列题名：Research on the management problems of food quality and safety in China Research on theory and practice of food quality and safety supervision 并列题名：Research on theory and practice of food quality and safety supervision research on the development of the dairy industry in China research on the internet access, penetration and usage in China Research on security system of agricultural products quality and safety in China Study on government management of agri-product quality and safety in China Research on the management and control system of food quality and safety from the perspective of food supply chain Research on prevention and control of food safety risks in China