A- Academic papers on theoretical and applied research (including summary reports); B- practical technical achievement report (science and technology), theoretical study and social practice summary (social science); C- Business guidance and technical management articles (including leadership speeches and special comments, etc.). ); D—— General dynamic information (communication, reports, meetings, interviews, etc.). )

Electronic literature (including historical materials, statistical data, institutions, people, books and periodicals, knowledge introduction, etc.). ); Articles, abstracts, news, blanks, advertisements, notices, etc. that do not belong to the above categories. No document ID is marked. Document type identification code (indicate various reference types and mark them on the back of the paper) Document type; Logo code; Ordinary books; M

Meeting minutes; c； Compile; g； Newspapers; n； Periodicals; j； Dissertation; d； Report; r； Standard; s； Patents; p； Database; DB； Online network (online)

The reference type identification method of electronic document carrier type is [document type identification/carrier type identification]. For example: online database [DB/OL] (database online); Tape database (database on tape); CD (CD monograph)

Disk software (computer program on disk); Online log [J/OL] (online serial); Online bulletin board system [EB/OL]; Literature precipitated in monographs and papers;