A.difference in longitude
B.mid-longitude
C.departure
D.meridian angle
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A.increases in north latitude and decreases in south latitude
B.decreases as DLO increases
C.increases with increased latitude
D.decreases with increased latitude
A.set the vessel to the left
B.set the vessel to the right
C.offer resistance in the form of a head current
D.furnish additional thrust in the form of a fair or following current
A.Canary Current
B.Benguela Current
C.Agulhas Current
D.South Atlantic Current
A.Leeway
B.Leeside
C.Leeward
D.Lee moving
A.List of Lights
B.Coast Pilot
C.Sailing Directions
D.List of Radiobeacons
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Attention is called to the fact that in many cases charted depths may be decreased by up to （）.
Conditions for crossing a rough bar are usually best at （）.
A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the （）.
The height of a light is measured from which reference plane?（）
A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.
A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.
During daylight savings time the meridian used for determining the time is located farther （）.
The distance between the surface of the water and the tidal datum is the （）.
The height of tide is the （）.