1, at the beginning of the flight, students do not enter advanced classes, advanced classes and top classes, which are basically the same as ordinary classes. Sailing means setting sail, which means starting a new journey and making a good start.

2. In the excellent class, the lecture content is basically synchronized with the school. The content is to expand and improve on the premise that students master the basic knowledge of textbooks, so as to find the general methods and laws of solving problems.

3. Excellent class, which means the top class. The background of the excellent course is the "Excellent Engineer Education and Training Plan" of the Ministry of Education.