The average score of 22 years nationwide 1 volume is 38.6. This year's college entrance examination mathematics has changed greatly, paying more attention to learning and practical application, which better reflects what kind of talents the country needs in the future. Gone are the days when we can't study hard, read books, brush more questions and get good grades in exams as before. Now it is more important to master the basic knowledge, apply the learned knowledge to practice, and better reflect the relationship between disciplines. This is also a talent who meets our contemporary needs. Mathematics is the source of independent innovation.