A.the dark appearance of the underside of a cloud layer due to reflection of a surface of open water
B.the soft light appearance on the underside of a cloud layer due to reflection from a surface of open water
C.the yellowish-white glare on the underside of a cloud layer
D.water sky
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A.be on an even keel
B.be trimmed slightly by the head
C.have a drag of not more than 60 - 90 centimeters
D.be ballasted so the forefoot is near the surface
A.either trimmed by the head or the stern
B.on an even keel
C.trimmed down by the head
D.trimmed down by the stern
A.anchor
B.to anchor
C.anchoring
D.to anchoring
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
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An alternating light（）.
A vessel shall be deemed to be overtaking when she can see at night（）.
In most cases，when a large merchant vessel enters shallow water at high speed the（）.
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.
A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral 4 when the vessel（）.
In order to reduce your wake in a narrow channel you should（）.
On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.
A vessel proceeding along the bank of a river or channel has the tendency to（）.
As the weather was worsening and wind force rising to 8，my vessel（）were yawing within forty degrees of the compass.
Before entering an ice area，the ship should be（）.