1, release and listing time are different.
Version A 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 is listed in mid-June every year, including the latest college entrance examination questions and simulation questions of that year.
2. The focus of the topic is different
In terms of difficulty, version A pays more attention to the basics, systematically and comprehensively explains the knowledge in the textbook, and explains the real questions of the college entrance examination in recent years. Version B pays more attention to improvement, mainly exercises and exercises, but most of them are college entrance examination questions, and the college entrance examination questions are excellent. Version b is a review question for the college entrance examination, which is suitable for sprint training in senior three.
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. Version A focuses on the basics and explains more. Version b is more difficult. Look at your own situation in response to the college entrance examination, and generally buy version B.
3. Different knowledge.
Version B is relatively difficult and has a wide range of knowledge. Compared with version A, version B is richer in content and more detailed in explanation. There are many questions in the college entrance examination in the last year.