单项选择题
How many categories are there in water transport?（）
A.2
B.3
C.4
D.Not available in the paragraph
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相关考题
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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 -
单项选择题
Where is the most air freight shipped in the passenger aircraft?（）
A.Separately
B.In same level
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
