There are three types of questions: fill-in-the-blank questions, multiple-choice questions and solution questions. Teach the answer, without specific derivation and calculation process. 4 points for each question, 0 points for wrong answer, and don't backtrack. Therefore, for multiple-choice questions, candidates are encouraged to guess the options if they can't answer them. Solution questions include calculation questions, proof questions and other solutions. Grading refers to general electricity. In the first year, there will be solutions and proofs, and professional problems will focus more on elementary solutions. 1 However, the reference solution provided must be separated from the "trial" and proof questions according to the process of calculation or reasoning. For example, if a country has 12 and other products need a lot of gold, it will be the first in the week. If you use different solutions, you will get the same result and give the same score.