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單項(xiàng)選擇題

When visibility is about 1 nautical mile only, we say that visibility is（）.

A.very
B.good
C.moderate
D.poor

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單項(xiàng)選擇題

When within the entrance, the vessel should（）surf islet.

A.navigate
B.arrive at
C.steer for
D.maneuver for

單項(xiàng)選擇題

Which of the following best indicates how many tons of cargo a ship can carry?（）.

A.Bale cubic
B.Deadweight
C.Gross tonnage
D.Net tonnage

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