Du zhi zui yi nan wen ti yan jiu/ Dang shi xue ji ben wen ti yan jiu/ Bao zhi ban quan wen ti yan jiu/ Zu zhi fan ji qi xiang guan wen ti yan jiu/ Guo ji fu wu wai bao wen ti yan jiu/ Guo jia zhi li wen ti yan jiu/ Shen ji du li xing wen ti yan jiu/ Xing fa ji ben wen ti yan jiu/ Du li dan bao fa lv wen ti yan jiu/ Min shang shi yi nan fa lv wen ti yan jiu.