If it's the 2022 edition, then this teaching aid will include 202 1 simulation questions and exam questions, but if it's the 202 1 edition, there are only 2020 edition questions, so if you are a candidate in 2022, you'd better buy the new edition.

Xueba Notes is a combination of the notes of college entrance examination champions and single-subject champions in previous dynasties and the knowledge points of national unified examination papers. It covers all the knowledge points of senior high school, which is very helpful for senior high school students to sort out the knowledge network and check for missing information. Xueba Notes is a reference book, similar to a dictionary, used to find and sort out knowledge points. It really grasps the framework and key points, shaves out the skeleton of a stack of teaching materials, and is more clear and three-dimensional.