Online school of library courses. Mathematics candidates from Guizhou junior college can go to the online library school to buy 2022 special textbooks for Guizhou junior college. The book "Advanced Mathematics" of Guizhou College Entrance Examination is compiled according to the reference textbook designated by Guizhou College Entrance Examination, and its content is closely related to the examination syllabus. The online school of library courses is an online school education platform that integrates real-time learning, live broadcast, examination question bank and homework in class, and is interactive with multiple users, roles and institutions.