單項(xiàng)選擇題Admiralty EasyTide（）.

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


您可能感興趣的試卷

你可能感興趣的試題

1.單項(xiàng)選擇題Aboard a survival craft，ether can be used to（）.

A.start the engine in cold weather
B.aid in helping personnel breathe
C.prime the sprinkler system
D.prime the air supply

2.單項(xiàng)選擇題A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.

A.Distress position
B.Spoken words“Mayday，Mayday，Mayday”
C.Ship's name
D.Ship's call letters

3.單項(xiàng)選擇題A sweep oar is an oar that is（）.

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

4.單項(xiàng)選擇題A person who sees someone fall overboard should（）.

A.immediately jump in the water to assist the individual
B.go to the bridge for the distress flares
C.run to the radio room to send an emergency message
D.call for help and keep the individual in sight

5.單項(xiàng)選擇題A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.

A.danger，stay away
B.all is clear，it is safe to pass
C.all is clear，it is safe to approach
D.a distress signal