Official website, Nanning Education Bureau, inquired that the preparatory class of Nanning Luban Vocational Skills Training School Co., Ltd. was established with the approval of the Ministry of Education. Mainly to recruit college entrance examination students who are about to go online to study in the school. After a year of study and training, students choose to enter the relevant departments of the school and become formal college students after passing the exam. It is legal to attend the preparatory course, and there is no illegality.