Which is better to buy a version or b version of simulated mathematics for 5 years college entrance examination and 3 years? For my textbook? And whether this teaching aid is divided into AB version now, I am very confused. The 5-year college entrance examination 3-year simulation mathematics is not divided into AB version, which is mainly aimed at the special use of each province. For example, if you are a liberal arts candidate in Zhejiang, you can buy the number of college entrance examination papers of "5-year college entrance examination and 3-year simulated mathematics"-Zhejiang special students. If your local college entrance examination is the national examination, then buy the general version! Understand?