Contact the tutor before the postgraduate entrance examination. What is the main purpose?

Basically, if you have a favorite teacher or a favorite direction, you need to contact your tutor first. For some good schools, it is very important to contact the tutor. The general tutor will choose whether to let you apply for the exam according to your own situation and yours. You call or email the teacher first, "Teacher XX, I am very interested in your research field. I am majoring in XX at XX University, and my graduation thesis is XXX. " There are many such words on the internet, you can look for them. In the latter two cases, the teacher agrees to apply for the exam, or does not answer, and generally does not answer, that is, he is not interested in you. At this time, you will find another teacher. After you agree, you must meet. When you meet, you can directly ask what the key points of the exam are. The average teacher won't give it unless he thinks highly of you. It is very important to contact the tutor before the exam, mainly because you know what you are doing. Many people try for the first time and fail in the second interview, mainly because they don't have a tutor. Good luck!