There is no absolute statement, not only in mathematics, but also in all disciplines. The so-called difficulty and simplicity are actually difficult to define. For example, in 2007, it was quite difficult to prove the high number with three * * *, but most people could not do it. The following linear algebra and probability theory are not difficult, but most people spend a lot of time on that question, and as a result, the last four questions are not answered well or have no time at all. As a result, the average score of the whole problem was reduced. Can you tell me the problem of that year? Sometimes one question affects the difficulty of the whole test paper. For example, in general, this year's double integral is relatively novel and difficult, and it may return to the regular question type next year. I hope my answer will benefit you!