In practice, it is not so detailed, because any part also needs the support of the other two parts, so it can only be said that everyone is mainly one of them.

Simulate several times in advance, and make a specific decision according to your actual ability and specialty.

The role of the tutor is not necessarily. According to common sense, students are the main body and teachers are the assistants. Tutors give guidance and help to students when they encounter difficulties, but now it is mostly tutors who help to put forward ideas to solve problems. Many schools are basically teachers from beginning to end, and students are assistants.