单项选择题
How many tons does the cargo 737 carry? （）
A. 100 tons
B. Not clear
C. more than 100 tons
D. I don’t know
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相关考题
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单项选择题
Where is the most air freight shipped in the passenger aircraft?（）
A. separately
B. Not clear
C. In the lower part
D. Not mention here -
单项选择题
How much is the percent of air transportation in all modes? （）
A. Less than 1%
B. Lowest
C. Lower
D. Low -
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
