The appointment of graduate tutors cannot be easily changed from the beginning, unless there is a major force majeure factor that causes the original tutor to fail to complete the guidance on time and conditionally.

The standard for graduate students to write a thesis should be a topic that can summarize the core content of the whole thesis, generally not exceeding 30 words. The number of words in the abstract of a paper is generally around 1000 words. Unless there are special requirements, it can be expanded to about 2000 words.