Just a liar. I sent a lot of materials before the exam, saying that they were "key points" and I must recite them. When you have almost memorized it, send another material called "Key". He also said, "It doesn't matter if you can't recite it before. This time you should recite the key points." I thought you were playing us! ?

It will make you dizzy. You just think they're professional. Come to think of it, you are all liars.