A.towing bridle
B.main weather cover
C.external lifelines
D.righting strap
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A.non-toxic gas
B.Oxygen
C.Hydrogen
D.Helium
A.equatorial area
B.polar regions
C.mid-latitudes
D.All of the above
A.makes no change at all
B.is somewhat lower than it would be for winds from a northern quadrant
C.is uncertain and may fluctuate by increasing and decreasing
D.is somewhat higher than it would be for winds from the northern quadrant
A.logs must be kept in an orderly manner
B.erasures are not allowed
C.it must identify the vessel's name and official number
D.All of the above
A.the Sailing Directions and the Coast Pilot
B.a weather fax
C.the Local Notice to Mariners
D.the Light List
最新試題
General information on enroute weather and climate is found in（）.
Great Salt Pond on Block Island is（）.
How does foam extinguish an oil fire?（）
How does an icebreaker normally free a ship which has become beset while navigating independently?（）
Handholds or straps on the underside of an inflatable liferaft are provided（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
How are riveted lap joints made watertight?（）
Generally speaking，in the Northern Hemisphere，when winds are blowing from between SE and SW the barometric reading（）.
How does a vessel’s rate of turn change when entering shallow water?（）
Guide tolerances during elevation of the jack-up rig will（）.