Biography Yang was born in Hefei , Anhui , China , his father Yang Ko-Chuen ( traditional Chinese : 楊武之 ; pinyin : Yáng Wǔzhī ) (1896–1973) was a math Biography Yang was born in Hefei , Anhui , China......
the treatment superficial 肤浅的 or does the author show extensive study into the subject's life source 源 materials were used in the preparation of the biography the work documented 有文件证明的 the author attempt to ......