Is it suitable for Guangdong college entrance examination students to do "45 sets" of exercises? Will it be too difficult? What kind of questions are not suitable for doing? I just want math and science. ... Personally, I think we should do this. I not only did 45 sets, but also did 60 sets of real questions and sprints before the exam. However, you can't expect to encounter similar problems in the college entrance examination. The chances are slim. The purpose of doing it is to train your own thinking. If you have no time, don't do it. Besides, I want to give you some advice. You should be free to play in the college entrance examination. The answer sheet is not that expensive. Last year, I just wrote my grades carefully, wasting a lot of time, not worth the loss! Don't be afraid of simple test papers. If it is difficult, they will mess around if they change. As a result, many unknown students rose, and many former cattle people fell.