A.full confirmation
B.precise appreciation
C.immediate assessment
D.timely recognition
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A.direction of a target
B.distance to a target
C.size of a target
D.shape of a target
A.brightness of objects
B.color of targets
C.shape of targets
D.bearing of objects
A.Latitude
B.Longitude
C.Speed
D.Time
A.deviation
B.variation
C.local attraction
D.All of the above
A.at close range
B.at end on situation
C.at head on situation
D.at crossing situation
最新試題
Which of the following statements is TRUE regarding crane operations().
The operation of which aids to navigation may be suspended during war or national emergency().
With respect to automatic identification systems(AIS),which information is expected to be broadcast every 1 to 10 seconds().
Which one of the followings does not limit the effective range of radar().
Would you mind()your DF?
The information received by AIS will be displayed on().
Loran-C is which type of system().
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with().
The line connecting the Loran-C master station with a secondary station is called the().
()is not an alarm required by IMO standards to be available on the ECDIS.