One of the best exams has many knowledge points, so the probability of taking the exam is two, but the depth of the exam is one of the best in modern times. I have done it for three years, and it is one of the best. I feel that counting two is more difficult, and if I have less knowledge, I will get deeper. This year, I took the top prize 149. I don't feel as good as being the top student. Although there are many knowledge points, it is not difficult. View original post >>