Nonsense on the first floor, many graduate tutors graduated from undergraduate courses. If you want to be a tutor, you should at least be an associate professor. Even after graduating from college, I have been a university teacher for many years. There are many reasons for not commenting, including censorship. President Zhang and a masonry teacher can recruit doctors and train them jointly with Beijing. The petroleum colleges in Beijing and East China are 2 1 1. Why not?