The difference between a master and a scum is that people can write a paper from beginning to end, while you can only write a solution. Why do some people write so fluently and smartly? Because people have strong self-confidence, they tell themselves that writing this festival is just a kind of respect for teachers. They know the real content in their hearts and can write it out completely. People don't hesitate at all, and there's nothing you can do if you go. You can only write solutions, so naturally you have no confidence in him, giving people a different impression.