The college entrance examination finale! Highly recommended! Harbin institute of technology publishing, doing real questions is also a very good choice! Or buy a thick "dictionary" without a "question bank" "a useless question?" Mastering the method is the key, not doing much, but understanding. This is the way to improve mathematics and the purpose of buying reference books. What you want to achieve is to find your own essential ability and have a positive and powerful heart. You can also achieve these goals with a stable score above 140 like me.