If your junior high school math foundation is not very good, then it is not recommended that you, uh, take the second math exam for the postgraduate entrance examination. I suggest you take an examination of a major without mathematics. If you want to take the science and engineering exam. Science and agriculture can avoid mathematics. However, in Neo-Confucianism, although mathematics is not tested, there are many advanced mathematics contents interspersed among them. You should also consider that some humanities and social sciences majors generally don't take math exams. Such as literature, pedagogy, history, translation, law and so on. If your English is particularly good, then you can also consider challenging yourself. After a year, math may be improved. But math takes time. If you review from now on, you may not have enough time. Of course, it depends on your talent. Some people are really good at math.