The academic system is four years, only architecture is five years. The school has 16 colleges and more than 50 undergraduate majors. It is not convenient to list them one by one. You can check the school website. Among them, mining and safety are first-class, and the majors of environmental measurement college and electromechanical college are also ok. As for the diploma, I haven't seen it. I haven't graduated yet, but it should be unified by the country. All the same.