A.Notice to Mariners
B.Coast Pilots
C.nautical chart catalogs
D.Sailing Directions
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A.smaller scales
B.larger scales
C.smaller scales and larger scales
D.moderate scales
A.Mercator charts／Loran charts
B.Admiralty charts／Routeing charts
C.large scale charts／small scale charts
D.small scale charts／large scale charts
A.Plotting radio bearings over a long distance
B.Determining latitude and longitude of a fix
C.Measuring rhumb line distances
D.Measuring rhumb line directions
A.warm front at night
B.low pressure area
C.anticyclone
D.lack of frontal activity
A.in
B.on
C.with
D.by
最新試題
Which would influence a magnetic compass（）.
What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.
The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.
Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer（）.
In revised editions of Admiralty charts the（）are corrected first．
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.
Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．
Section V of the ADMIRALTY NOTICES TO MARINERS is（）.
The height of a tide can be increased by（）.
The best estimate of the wind direction at sea level can be obtained from observing the direction of the（）.