2. The specific topic of graduation thesis is selected on the basis of previous research. After the direction of the topic is determined, the scope of the topic and the final specific topic need to be determined through further research and investigation. Among them, there are two methods that can be used, namely browsing and grabbing method and retrospective verification method.
3. Browsing capture is a method to determine the topic by reading a large number of documents, but this method requires you to read enough materials and compare them. The main purpose of browsing is to let you ask questions in the process of digesting information and study your own topic. This requires a comprehensive reading study of the collected data. Those big and small, from different angles and different viewpoints, should be understood. You can't have an opinion after reading some materials. That's it. You are eager to start writing. You can't be "preconceived" and decide your choice according to the original ideas in your mind or the views you get after reading the first message. Instead, we should calmly and objectively analyze and think about all the materials, absorb and ponder them repeatedly in the rich materials, and then draw a conclusion.
4. Retrospective verification method is a method of making an idea first, and then determining the topic through reading materials and verification. This method must have a certain idea, that is, initially determine the direction, subject or subject scope to be studied according to one's usual accumulation, but I am not sure whether this idea is really feasible, so I still need to follow up according to the proposed research direction.