单项选择题
what kind of products do the air carriers deliver? （）
A. The high value
B. Low density or weight
C. A and B
D. Shortest time to transport
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相关考题
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单项选择题
What is the disadvantage for air transportation? （）
A. Quick but not safe
B. Less frequency
C. It can’t lift heavy goods
D. The highest cost in all transport modes -
单项选择题
Loss and damage ration for motor are lower than any other modes. Is it correct?（）
A. Yes
B. Depend
C. Not
D. I don’t know -
单项选择题
The international trade needs the （） to fulfill its transaction.
A. Great amount of shipped
B. Tracks
C. Logistics
D. Ships
