Er tong fa zhan xin li xue

Ben shu guan zhu er tong fa zhan ling yu de xian shi re dian wen ti,Chan shi le er tong fa zhan de yi ban mo shi;Tan jiu fen xi le er tong xin li fa zhan de ji zhi he ge ti cha yi;Cheng xian le da liang guo nei wai er tong fa zhan yan jiu de xin cheng guo,Zhong dian guan zhu er tong fa zhan guo cheng zhong you guan de she hui wen hua yin su,Bing ti gong le jie jue qi cheng zhang zhong chang jian xin li wen ti de ji neng.