Fit. A Book is very suitable for the national college entrance examination. "A Book" is equipped with scribbled notes of the top candidates in the national college entrance examination, which matches the units or chapters of the textbook. The content of the syllabus is subdivided and studied in depth, and the textbooks with top students' classroom records are the key and difficult points. It is of great guiding significance to restore the learning scene of the top scholar after finishing by the front-line teachers, which originated from textbooks and is higher than textbooks.