1, the difficulty gradient of top students' questions is more reasonable, with both basic and difficult questions, which is suitable for students of different levels to practice. But the last question pays more attention to examining students' problem-solving ability and thinking depth, which is more difficult, and it is more difficult for students with poor foundation.

2. The topics of top students in Wan Wei are more comprehensive in the coverage of knowledge points, which can help students better master various knowledge points and problem-solving methods. But the last question pays more attention to examining specific knowledge points or problem-solving skills, and involves less other knowledge points.