We took that test paper, but I don't remember the specific topic clearly.

I remember the last two questions were very difficult, especially the 22 questions. I heard it was a competition question. It was so difficult that I didn't work it out at first.

Telling the truth, the latter two questions are more difficult, but they are set for selecting talents. As long as you ensure that the first 20 questions are done well, there will be no problem.