单项选择题
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
“Destination” means（）.A.the last portB.the home portC.t...
单项选择题“Destination” means（）.
A.the last port B.the home port C.the port of registry D.the final port the voyage
