According to the regulations, applicants with the same academic ability need to apply for academic papers within one year after passing all the exams and complete their thesis defense within half a year. If the defense fails, the application is invalid. However, if the thesis defense committee suggests that candidates revise their papers and re-defend, they can re-defend again within six months to one year. If the defense fails or fails to apply, the application is invalid, that is, the candidate must apply and reply within six months after passing, otherwise the application is invalid, and the application is invalid if he misses the thesis defense. Although the time for thesis defense can be postponed, don't think it can be postponed at will. First of all, if candidates have to postpone their thesis defense because of their own circumstances, they can negotiate with institutions; Then negotiate with the colleges and universities. If the colleges and universities agree, then the candidate's thesis defense time can be postponed, and vice versa.