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單項(xiàng)選擇題

What does “VHF” stand for?（）

A.echo sounder
B.radar
C.direction finder
D.radiotelephone

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單項(xiàng)選擇題

There are some navigational instruments（）.

A.in bridge
B.on the deck
C.in the radio room
D.on the hold

單項(xiàng)選擇題

Please supply my vessel（）300 tons of fresh water.

A.with
B.on
C.by
D.for

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