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單項選擇題

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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單項選擇題

（）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

單項選擇題

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