1, Siqing Navigation This book is well written in mathematics, with moderate difficulty and a wide range of knowledge that can improve grades.

2. Siqing Navigation is composed of excellent proposition experts and super senior teachers from all over the country. Combining many years of first-line teaching experience and research results of college entrance examination, it fully embodies the teaching objectives and requirements, pays attention to examining key knowledge and properly examines the coverage of knowledge; Test both double basics and various abilities.

3. Knowledge distribution is reasonable, and all levels are easy to match. It has good reliability, validity, difficulty and discrimination, and can accurately test the authenticity of students' mastery and application of what they have learned. Really keep pace with the times. ,