"Black and white volumes" are two sets of volumes, including black volumes and white volumes. Among them, the black volume highlights the required test sites, and the answering activity column re-explains; The white paper focuses on supplementary speculation. Use black rolls first, then white rolls. Because black paper emphasizes guessing and explanation, you can practice all kinds of required test points and questions and get familiar with all kinds of knowledge points after you finish black paper and check and analyze (there are expanded guessing and activity columns in the analysis). Master these and make a blank sheet of paper.
The "centering paper" is a joint proposition and peer review by a team of experts. Each subject invites 3-5 proposition experts. According to the joint examination proposition and life evaluation system, group discussion, joint proposition and peer review lasted for 35 days and were successfully finalized. Before the exam 10 day, the format and paper of the real test paper are fully adopted, so that students can warm up before the exam, practice in advance and take the exam calmly.