2003— | Vice-Chairman, 10th Education, Science, Culture and Health Committee of the NPC | |
2002— | Chairman, China Association for Promoting Democracy, Municipal Committee Beijing Municipality | |
2002— | Vice-Chairman, 11th China Association for Promoting Democracy, Central Committee | |
2000— | Professor, Tsinghua University, Physics Department Beijing Municipality | |
1998—2003 | Member, 9th Standing Committee of the NPC | |
1997—2002 | Vice-Chairman, 10th China Association for Promoting Democracy, Central Committee | |
1994—2000 | Vice-President, Beijing University of Science and Technology Beijing Municipality | |
1994—2000 | Professor, Beijing University of Science and Technology Beijing Municipality | |
1993—1998 | Member, 8th CPPCC, National Committee, Standing Committee | |
1992—1997 | Member, 9th China Association for Promoting Democracy, Central Committee |