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單項選擇題

Ocean transport use （）ships mostly.

A. Bulk
B. Container
C. Barge
D. RO/RO

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單項選擇題

Crude oil carriers often use （）

A. Big ships
B. Huge ships
C. Large container ships
D. Supertankers

單項選擇題

Water transport is the（） way of shipping bulk and low price goods.

A. Most inexpensive
B. Save money
C. Low cost
D. Economically