Xue Kui. More than 700 students from Tsinghua and Peking University participated in Xue Kui's problem solving, breaking the previous dilemma that learning depends on good methods, but they don't know how to do it. Materials for middle-aged and elderly people, Wan Wei, with complete topics, are very suitable for the senior high school entrance examination. If you read the book Wan Wei carefully, you should get 70 to 80 points in the senior high school entrance examination, which is still relatively good for Xue Kui.