You can apply for an extension of defense. In the process of on-the-job postgraduate entrance examination, it is inevitable that work or family matters will affect the submission time of papers. In fact, at this time, in-service graduate students can apply for an extension of their defense one month before the defense.

There are two opportunities for thesis defense. Usually, if the first defense fails, in-service graduate students can apply here again after half a year. If they still fail, it means that the application is invalid.