Version A and version B are distinguished by "region", that is, one version of teaching materials is generally used in the same region. 2, version B is more difficult, generally for science students.

Version A is a liberal arts student and version B is a science student. Writing and speaking knowledge are a little more difficult than A. All high school textbooks are the same, but slightly different, which has no effect on the exam, and the order of module setting is slightly different. Only the teaching methods in solid geometry are different. One is the traditional teaching method, and the other is the vector teaching method introduced in modern times. Although the textbooks are different, most teachers can speak them. It's just a matter of how much. The teacher is more inclined to that side.