2. be careful ~ be careful! Many questions leave traps .. I accidentally lose points in every exam. ..

Pay attention to the time when you do it, do what you can first, and be careful when you do it. Don't think seriously before checking. ..

There are always several difficult questions in a test paper. If you don't have a clue, then do all the questions you can do and be sure of, and then think about them in the rest of the time ... Pay attention to finding the information that can be provided to you in the questions, and it is best to list them, especially the application questions of equations, and pay attention to finding equivalence relations ... Don't be too persistent. When you find that one method doesn't work, try another way of thinking.

5. When checking, first check whether there are any missing problems, then check what you feel sure of (it is often careless here), and finally carefully check whether there are loopholes in the solution to the problem.

6. Don't hand in the paper after writing, check it several times.