I am a teacher. The problem in Shandong is the most difficult, and the problem in Shaanxi is the simplest. Mathematics in Shaanxi is easy to do well. As long as you do a good job in the real questions of the 2005, 2006 and 2007 exams, you'd better try to ask yourself to solve more than one problem, put it by the bed and watch it every day, which will definitely benefit you! Finally, I wish you a gold nomination!