Yes, the cheats for top students in the experimental class recommended upstairs are particularly good (Chunyu Education Publishing House, which is different from three questions in one lesson, and three questions in one lesson are the basis of practice. This test question is specially used for top students with potential good grades, and then expanded and improved). Of course, I also recommend three exercises in one lesson. Good volume, the complete solution of primary school textbooks is also very good. You can also go to the bookstore nearby. Really good books are waiting for you to find. Remember to choose the one that suits you best! Wish: learning progress and happiness! Let's work together!