This year's college entrance examination mathematics paper has three characteristics: First, the paper is stable but highly differentiated. 14, the first 12 is a little more difficult than last year, while the two 13 and 14 are obviously simpler than last year. Many students can do the first step of question 20, and the top students can score 190. Last year, these three problems were almost completely annihilated, so you can do other simple problems for math.