The code in front of the reference books for postgraduate entrance examination is a professional code, which is convenient for computer and examinee identification and postgraduate enrollment management. The first two professional codes are subject categories: 1 philosophy, 2 economics, 3 law, 4 education, 5 literature, 6 history, 7 science, 8 engineering, 9 agriculture, 1 medicine, 11 military science, 12 management science and 13 art science.
major categories are followed by subject categories such as 31 law, 32 politics, 33 sociology, 51 China language and literature, 71 mathematics, 81 mechanics, 911 agriculture, 151 traditional Chinese medicine, 1282 e-commerce and law, 1345 calligraphy and so on.
when registering online for postgraduate entrance examination, look up the enrollment brochure of the school you want to apply for. The 6-digit number that appears in front of the professional name like "911" is the postgraduate entrance examination professional code, which represents the major you want to apply for, so as to facilitate classification and identification.
Extended information:
Professional codes usually consist of 6 Arabic numerals, with the first two digits representing the major's category, the middle two representing the major's discipline, and the last two symbols representing the sign of changing the major. The professional code is the code of a university or other college. In fact, universities also have their own codes.
in addition to pure numbers, some professional codes also contain English letters, and these majors with letters are self-established majors in colleges and universities. Self-established majors Only when colleges and universities are authorized by doctoral programs in a certain first-level discipline can they apply for self-established specialties, and they can enroll students after strict examination and approval by the state.
Self-established majors are often the traditional specialties or strong specialties of the university, but they are set up by the university only if they are not set in the national catalogue of disciplines and specialties.
Reference: Baidu Encyclopedia-College Code
Reference: Academic Degree Network-Undergraduate Specialty Directory of Ordinary Colleges and Universities.