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
Which one of the followings does not limit the effective range of radar（）.
Most modern Loran-C receivers，when not tracking properly，have a（n）（）.
（）is not an alarm required by IMO standards to be available on the ECDIS.
Automatic identification systems（AIS）are required to（）.
（）is not a component of GPS.
Which statement concerning GPS is TRUE（）.
What does not contribute to the commercial GPS receiver position error（）.
If the radio signal ground wave extends out for less distance than the minimum skywave distance，there is an area in which no signal is received．This is called the（）.
Which of the following statements is TRUE regarding crane operations（）.
The heading of a vessel is indicated by what part of the compass? （）