I hope it helps you! The defense is mainly about your paper, so you should prepare your paper a little. 1. The topic of the paper (the general topic is the focus of the paper), you should make this understanding transparent; 2. Abstraction, which is also very important and needs to be understood; 3. Writing ideas, 80% of the difficulty of reading your paper will be asked by the teacher; 4. The explanations of key formulas are basically asked; 5. Where is the innovation of the paper (simply ask which part of the paper you made yourself, not what literature you extracted); The above points are the key to the defense. Attention, you graduated smoothly, adopt it ~ ~