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
A vessel is proceeding downstream in a narrow channel on the Western Rivers when another vessel is sighted moving upstream. Which vessel has the right of way? （）
Topside icing that blocks freeing ports and scuppers（）.
A vessel proceeding along the bank of a river or channel has the tendency to（）.
A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the（）.
A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral 4 when the vessel（）.
On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.
Small floes of rough，hummocky sea ice capable of damaging a vessel（）.
Any vessel shall，if the circumstances of the case admit，avoid（）in a narrow channel.
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.
A vessel the passage of which is not to be impeded（）to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.