The oldest year is 2024. Mathematics (2) of the senior high school entrance examination in 2024 was a bit difficult, and the candidates generally reported that the difficulty exceeded expectations, which was "the most difficult year in history". However, from another perspective, difficult questions can also screen out truly outstanding students; Postgraduate examination itself is a selective examination, its purpose is to select students with certain academic foundation and scientific research potential; Difficult problems can better test students' comprehensive quality and academic accomplishment, and make truly powerful students stand out; In addition, for those candidates with weak foundation, they will encounter difficulties in the exam, but they can also improve their academic level and test-taking ability through targeted review and training; Difficult test questions can make candidates study harder and have a deeper understanding of subject knowledge, thus improving their competitiveness.