Moreover, the questions here are moderately difficult and suitable for middle school students. While brushing the questions, you can consolidate the foundation, review the previous knowledge, check for leaks and fill gaps, draw inferences from others, improve the quality of complaints, exercise your thinking ability, and help top students break through the limit when doing the questions.
In the exam, you can also break through your own grades and get very high grades, which is very helpful for students' study.