Ph.D. 2004 (Education), Beijing Normal University;
M.A. 2001 (Education), Hebei University;
B.A. 1998 (Education), Hebei University.
Ph.D. 2004 (Education), Beijing Normal University;
M.A. 2001 (Education), Hebei University;
B.A. 1998 (Education), Hebei University.