Cong dang qian dao wu xian

Ben shu shi ma dingLi si 2010 nian zai ying guo guang bo gong si fa biao de si ci yan jiang de kuo zhan ben,Miao shu 21 shi ji ke xue de jin bu he qian jing,Qiang diao ke xue zhi shi ru he neng gai tian huan di,Ru he you zhu yu wo men zhei ge ri yi yong ji,Xiang hu lian xi de shi jie mian dui tiao zhan:da liu xing bing,Xi tong beng kui,Zi yuan duan que yi ji huan jing wei ji.