After the presentation, the review teacher will give you two or three questions, which are generally related to the contents of your paper. Find out the source of the questions and give him a blow by combining the views in your paper. If a teacher deliberately makes things difficult, tell him sincerely that I haven't studied this problem very deeply, and ask the teacher to make some suggestions and I'll study it when I get back.
In this way, teachers or schools will not get stuck in your thesis defense.
After all, the quality and quantity of graduates are related to the reputation of the school.
I just finished my defense the other day. I wish you a smooth defense and find a good job as soon as possible!