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單項選擇題

What does the abbreviation VHF stand for?（）

A.Vessel's Hoisting Flag
B.Very High Safety
C.Vessel's Homing Frequency
D.Very High Frequency

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單項選擇題

Vessels wishing to communicate with the Port Health Officer should do（）on VHF Channel 14.

A.so
B.that
C.this
D.same

單項選擇題

There is a VHF set（）the front of the wheelhouse.

A.at
B.on
C.of
D.in

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