A.Soundings
B.Waypoints
C.Meteorological data
D.Radar targets
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A.Radar targets
B.ARPA vectors
C.Hydrographic data
D.All of the above
A.beam
B.radar
C.light beacon
D.reflector
A.Straight line
B.Arc
C.Parabola
D.Hyperbola
A.relative display
B.composite display
C.stabilized display
D.unstabilized display
A.unstabilized display
B.stabilized display
C.composition display
D.relative display
最新試題
Deviation is the angle between the（）.
A Doppler speed log indicates speed over ground（）.
An ECDIS is required to display which information?（）
Compass error is equal to the（）.
A barometer showing falling pressure indicates the approach of a（）.
（）the canal transit，the radar was operating.
What will NOT induce errors into a doppler sonar log?（）
How is variation indicated on a small-scale nautical chart?（）.
（）is on the panel of radar.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.