1, Wan Wei top students have a lot of final exam questions, and key knowledge is helpful to improve students' grades, which is very suitable for middle school students. Wan Wei's papers, large and small, have few final questions and simple knowledge points, which is not helpful to improve the grades.

2. Top students in Wan Wei have a thorough analysis of the answers to the questions, which can help students to understand them well. There are few answers to questions in Wan Wei's large and small papers, which requires students to spend a lot of time studying.