无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項選擇題

for payment. we require an irrevocable L/C ______sight against presentation of full set of documents to the negotiating bank here.

A. at,    
B. after 
C. on      
D. by

微信掃碼免費搜題