Medical category: What is the relationship between departments and hospitals in universities such as life science department and medical department? In the early years, universities were strictly classified according to departments. Later, after the course of school merger and major division, the state called for streamlining departments, so the institutional setting of universities changed from "department-major" to "college-department-major". "Department" often contains several professional classification attributes, while "Institute" often contains a wide range of classification concepts. Today, with the simplification of university institutions, some universities have not strictly distinguished the boundaries between "colleges" and "departments" for the convenience of management. Therefore, it is of little significance to consider the "department" when filling in the volunteers, and it is better to give priority to majors.