Different schools and departments will have corresponding regulations on the arrangement of graduation thesis defense. Under normal circumstances, schools and departments will inform students in advance of the time, place and members of the defense. Under normal circumstances, students can know the list of the tutor's marking group and their own defense teachers when opening their defense; Or some time before the defense, get to know the information of the defense teacher through the websites of schools, departments or other channels.
If you don't know the specific arrangement of the defense, I suggest you contact your tutor or the academic affairs office of your college in time to understand the relevant matters. A proper understanding of the background and academic achievements of the defense teacher before the defense can help you better prepare the defense content and improve the success rate of the defense.