B-class doctors A-class doctors have published no less than 5 high-level papers by the first author or correspondent, which has a high scientific level and innovative value, or have made great achievements in engineering technology or art and sports applications; Class B doctors have published at least 3 high-level papers as the first author or correspondent, or made important achievements in engineering technology application or art and sports. Class C doctor is a doctoral degree winner who meets the needs of discipline construction and teaching in the school. D-type doctor is a certain number of talent introduction indicators determined by the school every year, which is related to the professional direction of talents shortage in Linyi industrial enterprises, and the introduction, enjoyment and use of talents in schools and enterprises. School-enterprise employers * * *, * * enjoy, * * * only reported to the school, and must work full-time in the enterprise for 3 years, and be assessed by the enterprise. Linyi University, abbreviated as Linda, is located in Shuangling Road, lanshan district, Linyi City, Shandong Province. Full-time colleges and universities organized by Shandong Provincial People's Government are under the responsibility of Shandong Province and Linyi City participates in the construction.