After the completion of doctoral thesis writing, it is generally necessary to pass the exam, and some schools implement blind inspection of graduation thesis. Blind test is relatively difficult, and it takes about one and a half months.

Generally issued by the school, mostly sent to other provinces, the name and tutor's name are hidden. You don't know where your paper came from, and the teachers there don't know where it came from and whose students it is, so blind evaluation is relatively objective.