Objectively speaking, Dade's signboard is very famous, but outsiders don't know what it is. I can only say that it has a lot of advertisements. If you like, I still suggest that you teach yourself, which can save expensive expenses and worry a lot. I am also a graduate of the self-taught examination for administrative management undergraduate, and I completed it through self-study. Although the process is a bit bitter, as long as you have faith, you will always succeed. In retrospect, I don't feel anything. One-year crash course, can I give you an ironclad guarantee? Personally, I don't recommend taking these courses. Self-taught exams mainly rely on personal efforts. I am afraid that these institutions will bully those who are eager for success in this name.