A.provide safety-related information automatically to shore stations，other vessels and aircraft
B.receive safety-related information automatically from similarly equipped vessels
C.exchange safety-related information with shore-based facilities
D.All of the above
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A.He space component
B.Control component
C.User component
D.Alarming component
A.Deviating from a planned route
B.Approach to waypoints and other critical points
C.Light house detecting
D.Larger scale chart available
A.detective Availability
B.local environmental conditions
C.autonomous mode versus differential correction mode versus RTCM mode
D.the averaging of recorded locations
A.Vector chart format
B.Raster chart data
C.pixel
D.Electronic Nautical Chart
A.Card
B.Needle
C.Lubber's line
D.Gimbals
最新試題
Loran-C is which type of system（）.
（）is a digitized“picture”of a chart.
（）is not an alarm required by IMO standards to be available on the ECDIS.
To obtain accuracy in fixing by DF，（）and three stations should be used.
The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.
The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.
Which one of the followings does not limit the effective range of radar（）.
The（）transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.
What does not contribute to the commercial GPS receiver position error（）.