Where goods are to be dispatched by road, rail or air instead of by sea, the documentary credit will call for a road transport document or a rail transport document or an airway bill instead of（）.

A．a bill of exchange

B．a certificate of origin

C．a bill of lading　

D．a certificate of insurance

青年男性，自高处跌下，致骨盆骨折，发生排尿困难，尿潴留，会阴部肿胀，导尿管不能插入。膀胱损伤的部位应是（）

A.膀胱

B.肛门直肠

C.后 * *

D. * * 球部

E.阴茎部 * *