In fact, graduation defense requires a clear understanding of the content and quality of one's thesis, and there is also a certain language art in answering teachers' questions. Generally speaking, judges and teachers will point out some questions on the test paper for students to answer. At this time, if you have a clear answer to the question, you can answer the teachers' questions politely. But if you don't have an ideal answer to the teacher's question, then you need to exert the magic of "apology" quotations.
According to my personal experience during my undergraduate and postgraduate thesis defense, unless you have a particularly strong reason to convince the teacher of the questions raised by the teacher, it is not recommended to be "hard" with the teacher. You can express your modest attitude by "apologizing". As long as the problem is not too serious, the judges will generally "go down the slope".
Then, some students will ask, how should we "apologize"? The following are four "apology" quotations for graduation defense.
Rule number one: apologize easily
When the questions raised by the judges are relatively small, such as the format of the paper, the expression of the paper, and the statement of the paper lacks rigorous logic. In the face of such a small problem, you need to show your humility. You can reply: hello, teacher, I really didn't think carefully/clearly about this question. Go back and I'll improve. Thank you for your suggestions! Of course, to show your modesty, you can also add some facial expressions and body language. In short, let the judges and teachers think that you are modest and serious.
The second type: moderate apology
Generally speaking, after the submission process, students will be very aware of the main problems in their papers, even some problems that cannot be improved or cannot be improved at all. When these questions are put forward face to face by the judges and teachers, you are even more dangerous. If you are "rigid" or "picky" about the judges, it will only reduce the teacher's impression of you.
In this case, you should be more humble and apologize in a very sincere tone. You can learn from the following quotations: I'm sorry, teacher, this question was really not considered before, which led to the incomplete structure of my thesis. I'll make up this part as soon as I get back! Under normal circumstances, the judges and teachers see that you have a good attitude and will not embarrass you!
The third kind: a deep apology
This situation applies to the case that your paper is particularly watery. Although there is a submission link before the defense, it still does not rule out that there are some papers with special water in the defense. If this is the case with your thesis, you are likely to stumble in your defense, which will lead to a second debate.
In this case, you should be fully prepared. The teacher asked this part of the question, and you should answer it like this: this part of the question you asked has always been my doubt in the process of writing my thesis. I have never found a suitable solution to this problem. I wonder if the teachers have any suggestions on this. I will definitely modify it immediately after I go back. In short, just two words, modesty!