The normal academic system of undergraduate course is generally 4 years. Due to many courses or practical needs, some undergraduate majors are five-year programs. Such as clinical medicine, Chinese medicine, architecture, urban planning, sculpture, musicology and so on. For example, the major of industrial engineering, traffic engineering, welding technology and engineering offered by Dalian Jiaotong University adopts the teaching method of grafting with the major of software engineering, and the graduation certificate will reflect both majors at the same time, and the corresponding degree will be awarded, which is also a five-year system. Let's talk about the special undergraduate and postgraduate majors in 6-8 years.