Ben shu shi yi di er ci shi jie da zhan wei bei jing, Cong yi shi xing tai shang dui de guo fa xi si zhu yi zuo le"zhui jiu ji wang"shi de si xiang qing suan. Dui zi 20 shi ji qi de xi fang fei li xing zhu yi si chao de yuan liu, Yan bian he she hui hou guo deng zuo le xi tong de kao cha he pi pan.