Second, the qualification question must be a bachelor degree or above. If you want to apply for a good school and find a good tutor, then you must have enough competitiveness, such as your study background, research results, SCI papers, overseas study plans, papers and so on.
Third, the material problem. When you have the basic conditions for going abroad as a visiting scholar, that is, you get the DS20 19 form and the invitation letter from foreign tutors, you will face a lot of material preparation stages.
Fourth, audit issues, such as materials ready, will face audit.