Wang Hao and Chu Yafei led China to________gold and silver finish in________20kilometer walk,the

first athletic event at the Asian Games. [      ]

A. a; the    

B. the; a    

C. 不填;  a    

D. 不填;  the

* * 球部损伤时，尿液外渗主要分布于（）

A.会阴部

B.腹腔内

C.膀胱周围

D.耻骨前间隙

E.耻骨后间隙