A.It's of no use for navigation and would be removed with notice
B.It's useful in navigation and may be removed without notice
C.It's helpless in navigation and may be removed without notice
D.It's helpful in navigation and may be removed without notice
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A.backing
B.going slow ahead
C.going full ahead
D.turning
A.above the polar circles
B.in a low pressure area
C.during periods of low temperatures
D.in the doldrums
A.polar regions
B.horse latitudes
C.roaring forties
D.doldrums
A.daily lapse reading
B.diurnal variation of pressure
C.pressure tendency
D.synoptic pressure
A.Declaration of Deadweight Capacity
B.Notice of Demurrage
C.Notice of Despatch
D.Notice of Readines
最新試題
The diurnal variation of pressure is most noticeable（）.
I’m not fully aware（）what happened at the loading port．
The Experimental Lighthouse-buoy has no navigational significance and may be removed at will.The above sentence means（）.
Please return the copies attached（）your signature.
The diurnal pressure variation is most noticeable in the（）.
My Captain is trying to（）the pilot station before the ebb tide.
On a clear，warm day，you notice the approach of a tall cumulus cloud. The cloud top has hard well defined edges and rain is falling from the dark lower edge. Should this cloud pass directly overhead（）.
If，after examination by the Quarantine Officer，your vessel is found to have a specific deficiency，you may be issued（）.
The undersigned（）that he is duly authorized by the said Government to issue this certificate.
The Local Notice to Mariners is usually published（）.