Hello, Xueyou: Generally speaking, if you want to pass the self-taught exam, it is not difficult to defend your thesis, but if you want to get good or above grades, you need to prepare well. Generally speaking, in the thesis guidance, the tutor will ask some specific questions, and preparing for these questions is generally the focus of the defense. Furthermore, Xueyou tries to be confident in the process of defense, so that the posture is more natural, which will give the tutor Liu Xia a better impression and make communication easier.