When the undergraduate graduation defense, the defense teacher asked a question: "What is the basis of this paper? This arrangement is unreasonable. " As soon as I heard this question, I had no time to answer it. My tutor immediately distanced himself from the questioner. One thinks it is reasonable and the other thinks it is unreasonable. The whole thesis was written according to the tutor's ideas, so I didn't have a chance to participate in the whole defense process, which has evolved into a war between two teachers, and I graduated in a daze. Later, the graduation thesis defense, the defense teacher asked a lot of questions, he asked very seriously. At that time, he thought to himself, I won't graduate if it's over. At that time, I was so nervous But then I found out that I graduated smoothly and got high marks. Now I am also a member of the defense teacher. Students will ask a few questions with a serious face when defending. No matter whether the students answer well or not, as long as they have a good attitude towards writing and defense, they will generally give them.