Since the senior high school entrance examination in 2000, the independent proposition of each district and county has been restored, but it has become a unified proposition in the city in the past two years. When each district makes a separate proposition, there are many new questions in Haidian District, which are more difficult. The questions in Dongcheng District and Xicheng District are relatively moderate, among which Dongcheng District is easy to increase or decrease the difficulty in the mock exam to examine the students' level and determine the difficulty of the final exam, while Xicheng District is relatively unified, with moderate difficulty and questions, the mock exam is slightly more difficult and the actual exam is lower than the mock exam. The topics in Chongwen District, Xuanwu District, Chaoyang District, Fengtai District and Shijingshan District are slightly easier by comparison, and the practice before the exam is also good.