The topic is aimed at the graduation thesis. The opening meeting includes the topic selection, research significance, purpose, research progress at home and abroad, practical application value, paper structure, references and so on. Opening the topic mainly depends on whether your paper can be done. If you fail, you can only reopen the topic. Try to prepare in advance and pass at one time. The defense is divided into two parts: the thesis statement and the teacher's question. When you ask questions, you should see how your defense teacher is. Some teachers will stick to you. At this time, your attitude must be modest and you can't quibble (if you don't have any deep hatred with your teacher, the teacher will give you a good look). You'd better do ppt when you reply. You can see if you need to prepare multimedia to help you present your paper. Generally speaking, everyone's time is 10 minutes, 3-5 minutes to make a presentation, and the rest time to ask questions.