A.Leeway
B.Leeside
C.Leeward
D.Lee moving
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A.List of Lights
B.Coast Pilot
C.Sailing Directions
D.List of Radiobeacons
A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal
A.watch
B.look for
C.see
D.regard
A.west in west longitude and east in east longitude
B.east in west longitude and west in east longitude
C.west
D.east
A.Snowfall or blowing snow
B.Lack of ability to estimate distance
C.Harsh contrast between sun-illuminated snow cover and the background
D.Hazy horizons with extensive mirage effects
最新試題
Conditions for crossing a rough bar are usually best at （）.
A pilot vessel on pilotage duty shall show identity lights （）.
The distance between any two meridians measured along a parallel of latitude （）.
The height of a light is measured from which reference plane?（）
Attention is called to the fact that in many cases charted depths may be decreased by up to （）.
The distance between the surface of the water and the tidal datum is the （）.
A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the （）.
Areas enclosed by a long and short dashed magenta line indicate （）.
The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.