How to choose multiple-choice questions randomly in the math exam with high hit rate?

First of all, you should listen to the lectures more, and the probability of answering the multiple-choice questions correctly is quite small. Mainly rely on memory, do not listen carefully to the papers, you can read more questions after class. Because the questions are very similar, there are only a few answers. Then you can pay more attention to who gives the questions and master their rules. For example, our teacher likes to choose A, and there will be no D option in his paper. Random selection depends on luck, good luck ~ ~