What kinds of R23 are there in China and France?

China Library Classification (formerly known as China Library Classification) is a representative large-scale comprehensive classification compiled and published after the founding of the People's Republic of China, and it is the most widely used classification system in domestic libraries today, referred to as Chinese Library Classification. The compilation of China Library Classification began at 197 1 and has been published in five editions.

? The Library Classification of China adopts the mixed numbering of Chinese phonetic alphabet and Arabic numerals, with one letter representing a major category and reflecting the alphabetical order of major categories. The disciplines subdivided under the general category are composed of Arabic numerals. In order to adapt to the development of industrial technology and the classification of this kind of literature, the two-letter classification of industrial technology is adopted.

China Library Classification, referred to as Chinese Library Classification, is now the fifth edition. Including Marxism-Leninism, Mao Zedong Thought, philosophy, social science, natural science and comprehensive books, there are 22 basic categories in five categories, as follows:

Answer? Marxism-Leninism, Mao Zedong Thought and Deng Xiaoping Theory.

b？ Philosophy, religion

c？ Introduction to social science

d？ Politics, law

e？ military affairs

f？ economy

g？ Culture, science, education, sports

h？ Language, writing

Me? literature

j？ art

k？ History, geography

n？ Introduction to natural science