Judging from the examination papers, students have a solid grasp of basic knowledge. In the basic knowledge test questions, except for a few students who make mistakes, most students have higher accuracy. Although the correct rate of the slightly more difficult questions is not very high, the score rate of most students is also very high. It shows that students have a good grasp of the basic knowledge in this textbook, such as basic calculation, hands-on operation, unit conversion, possibility and solving basic problems in life.