单项选择题
How long the haul for international deep-sea movement usually?（）
A.Very long
B.Ten thousands of miles
C.Thousands of miles
D.Thousands of kilometers
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（）Which area is the most commodity shipped in water transport?
A.In international deep sea
B.In lakes
C.In river and canals
D.Coastal ocean -
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What is the meaning “speed is not of primary importance”?（）
A.Speed is important
B.Speed is not the most important
C.Speed is mainly important
D.Speed is first importan -
单项选择题
What are transported mainly by water?（）
A.Raw materials
B.Heavy, bulky and low value commodities
C.Semi-processed
D.Great amount goods
