Graduation is difficult. According to official website, graduate students first refer to academic qualifications, and then they are divided into master's degrees and doctor's degrees. In fact, it is generally considered that it is quite difficult to graduate from a doctor's degree. After all, it is very difficult for most doctoral students to graduate. Only a few doctoral students may have good talents, meet good tutors, or have a good research direction, and it is easier to get a doctorate in the end.