A.anchor
B.to anchor
C.anchoring
D.to anchoring
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A.shows a light with varying lengths of the lighted period
B.shows a light that changes color
C.marks an alternate lesser-used channel
D.is used as a replacement for another light
A.dockmaster
B.dock captain
C.lockmaster
D.lock foreman
A.speed begins to drop
B.stops
C.receives ice damage
D.becomes icebound
A.displaying code letter Y (Yankee)
B.sounding five short blasts on his whistle
C.displaying code numeral 5
D.sounding one prolonged blast on his whistle
A.remains fully obliged
B.has no obligation
C.is not necessarily
D.is exempted
最新試題
Topside icing decreases vessel stability because it is usually off-center and（）.
On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.
Any vessel shall，if the circumstances of the case admit，avoid（）in a narrow channel.
A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is（）.
For operations in pack ice，a vessel should（）.
In selecting a tug for moving a vessel，consideration should be given to its（）.
Before entering an ice area，the ship should be（）.
If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.
A tug’s horsepower available at the shaft is（）.
All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.