Minimum wage standard. According to the query "Regulations on the Wage System of Staff in Public Institutions in People's Republic of China (PRC)", it can be known that public institutions should pay wages according to the minimum wage standard stipulated by the state, and determine the wage level according to factors such as jobs, job grades and working years. Therefore, institutions should also pay wages according to the minimum wage standard. Postgraduate is a kind of academic qualification in higher education and the last stage of academic education in China, which is divided into master's degree and doctor's degree.