Li Yongle's 400 questions are very difficult. Every question in them involves n aspects, and there are n rounds, mainly to exercise your comprehensive knowledge. When you do 400 questions, your thinking level has been improved imperceptibly, but the real questions usually have only one round, at most two rounds, so it is much easier for you to do the real questions. I took the exam last year. At that time, when I did 400 questions, I could hardly do any big questions. 150, I can probably get 60 points, and I almost don't want to take it. Later, before the exam, I took a set of real questions and found it much easier. I suddenly felt confident again. Finally, my results in the postgraduate entrance examination were ok, 1 10.