1,1973.7-1978.438+00 Students from No.1 Middle School of Chaihe Forestry Bureau

2.1978.10-1982.7 Students from Harbin Institute of Electrical Technology.

3. 1982.7-2005. 12 Teachers, Youth League Committee Secretary, Deputy Section Chief and Section Chief of Mudanjiang Construction Technical Secondary School (also taking math classes)

4.2005. 12-2007.4 Director, Office, School of Civil Engineering, Mudanjiang University (part-time math class)

5. From April 2007 to March 2008, Director of the Catering Center of Mudanjiang University.

6. Since March 2008, Deputy Director, Department of Sociology, Mudanjiang University (part-time math class)