单项选择题
A.steering gear B.Loran C.rudder indicator D.log
What does “VHF” stand for?（）A.echo sounderB.radarC.dire...
单项选择题What does “VHF” stand for?（）
A.echo sounder B.radar C.direction finder D.radiotelephone
There are some navigational instruments（）.A.in bridgeB....
单项选择题There are some navigational instruments（）.
A.in bridge B.on the deck C.in the radio room D.on the hold
Please supply my vessel（）300 tons of fresh water.A.with...
单项选择题Please supply my vessel（）300 tons of fresh water.
A.with B.on C.by D.for
