Is Wang Chaoxia's junior high school math edition RJ?
It's good. The examination papers are issued by senior primary and secondary school teachers and teaching and research personnel who have been engaged in proposition work for a long time in various places. All the questions have a good grasp of the concept, scope, type and difficulty, which are completely consistent with the large-scale final exam and have strong information. The examination paper is forward-looking, predictive and scientific, and of high quality.