RT Journal T1 A1 自强 辛 PB Journal of East China Normal University(Educational Sciences) FD 2007-06-01 YR 2007 JF Journal of East China Normal University(Educational Sciences) JO Journal of East China Normal University(Educational Sciences) VO 25 IS 2 SP 42 DO 10.16382/j.cnki.1000-5560.2007.02.008 K1 LK {https://xbjk.ecnu.edu.cn/EN/article/article_8377.shtml}