Zhonggong Education Group was established in 1999. Since its establishment, Zhonggong Education has developed from an information technology and education service institution with independent graduates from Peking University to a comprehensive enterprise group in the education service industry. It is a knowledge industry entity that integrates the educational research and pre-test training of civil servants, reference civil servant managers, staff of public institutions, village cadres and other public officials, as well as the editing, publishing and distribution of books, videos, networks and teaching materials for civil servants' examination counseling. A teaching assistant refers to a position that assists teachers in teaching in colleges and universities, primary and secondary schools. Generally speaking, the work of a teaching assistant is to guide the coursework, correct the students' homework, be on duty in a department's office and supervise the work. In classes with a large number of students, teachers will be assisted in taking experimental classes or internship classes.