The examination papers of each school in the same major may be different. Especially for highly specialized majors, one of the specialized courses is an independent proposition of the enrollment unit, and the test questions are different. For example, also majoring in applied chemistry, Tsinghua University's preliminary subjects are: ①10/ideological and political theory ②20 1 English ③30 1 mathematics ④837 Physical chemistry. The preliminary subjects of Tianjin University are: ① 10 1 ideological and political theory 2201English 3302 mathematics 24839 physical chemistry. For the major of business administration, because only two courses, namely, foreign language and comprehensive management ability, are tested in the initial examination, and these two courses are national unified examination and national joint examination subjects, so the papers of different schools are the same. Because the examination papers of each school in the same major may be different, candidates are advised to review according to the professional catalogue and examination outline of the enrollment unit.