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

If you make different trade in different countries, you must take different transport modes? （）

A.Yes
B.Not
C.It must be based on cost
D.Not mention in the paragraph

你可能感興趣的試題

單項選擇題

Pipeline is low cost and reliable. Is it true? （）

A.Dependable
B.Not
C.Yes
D.Not mention here

單項選擇題

Cost of pipeline is very different of underground conditions. Is it right? （）

A.Not
B.Yes
C.They can’t compare
D.Not discussion in the paragraph