First of all, the reasons for defense are different:

1, the first defense is mainly to organize the thesis defense. To put it simply, it is to further investigate the paper, that is, to further investigate and verify the author's understanding of the topics discussed in the paper and his ability to demonstrate the topics on the spot.

2. Investigate the depth and breadth of the author's mastery of professional knowledge, and whether the thesis is completed by the students themselves. If the second defense fails to pass the graduation thesis, it will be defended again.

Second, the results are different:

1, the purpose of the defense is to pass, graduate on time and get the diploma, so students who pass the defense for the first time can graduate on time and get the diploma.

2. The purpose of the second defense is not to affect graduation. After discussion by the defense Committee or the degree-granting Committee, it is decided to give the students who failed in defense another chance to graduate successfully.

Third, the introduction of the defense:

1, defense is an educational term. Generally, teachers of several related majors put forward some questions according to students' design entities and papers, and at the same time listen to students' personal explanations to understand the authenticity and familiarity of students' graduation design, examine students' adaptability and breadth of knowledge, and listen to students' understanding of the development prospects of the project.

2. If you really don't understand a question, ask the teacher modestly, try your best to get the teacher's tips, deal with it skillfully, face the difficulties with a positive attitude, think carefully about the answer, and don't give up on yourself.