Version A mainly aims at the basic questions, systematically and comprehensively explains the knowledge in the textbook and explains the real questions of the college entrance examination in recent years.

Version B is mainly an exercise, but it is also an exercise, but most of them are college entrance examination questions, and the college entrance examination questions are excellent. The college entrance examination review questions are suitable for sprint training in senior three.

2. Different time to market

Version A of "5.3" is published in February every year, including the latest simulation questions of that year, but excluding the college entrance examination questions of that year;

Version B of "5.3" is listed in mid-June every year, including the latest college entrance examination questions and simulation questions of that year.

3. Different stages of application

Version A is suitable for the second round review of senior three students and senior two students in the same year.

Version B is suitable for the first and second rounds of review of senior three students in that year.

Extended data

Book evaluation:

Xu Kexing, a special Chinese teacher in Beijing, commented that "May 3" is really the leading work for preparing for the college entrance examination, and it is helpful to improve the examination results quickly by collecting the essence of learning and examination.

Qiao Jiarui, a special math teacher in Beijing, commented: whoever chooses 5.3 will choose the right review path; Whoever chooses 5.3 will master the scientific review method; Whoever chooses 5.3 can achieve ideal results in the college entrance examination.

Science preparation = 1 student book+1 student book+1 automatic teacher book (with CD)

All subjects provide teachers' books with the same page number as students' books (excluding literature and science comprehensive).