A.thank
B.be thankful
C.be thanked
D.be thankful for
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A.frequent opening of hatches to permit entry of fresh air
B.regular checks of bilge levels
C.use of ear plugs to dampen engine noise
D.frequent flushing of the water spray system with fresh water
A.has little use for ocean-going mariners
B.permits the mariner to select and simultaneously calculate tidal heights for multiple ports for up to seven days
C.includes periods of daylight and nautical twilight，moon phases and a springs and neaps indicator
D.is supplied in the form of a single CD which contains the calculation program and the seven geographic Area Data Sets（ADS）providing global coverage
A.start the engine in cold weather
B.aid in helping personnel breathe
C.prime the sprinkler system
D.prime the air supply
A.Distress position
B.Spoken words“Mayday，Mayday，Mayday”
C.Ship's name
D.Ship's call letters
A.generally shorter than the others and is used to steer with
B.is longer than the others and is used as the stroke oar
C.is raised in the bow of the boat for the steersman to steer by
D.longer than the others used for steering
最新試題
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
The latest known details of lights are given in（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
A person who sees someone fall overboard should（）.
What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.
A sweep oar is an oar that is（）.
After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
Admiralty EasyTide（）.