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This book is very good! It is divided into two papers, A and B according to difficulty, which can not only test basic knowledge but also increase the difficulty appropriately, which is very helpful for students. Reminds me of my brother, who is in eighth grade and struggling with math. I think this book will be of great help to him, not only to help him detect learning effects, but also to improve his abilities. Moreover, the questions in the book are selected by experienced teachers, and the quality is guaranteed. I plan to recommend it to him and hope he can make progress in mathematics!