A.direction of a target
B.distance to a target
C.size of a target
D.shape of a target
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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
A.to get
B.to approach
C.to proceed
D.to close
最新試題
You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.
Radar makes the most accurate determination of the（）.
The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
Loran-C is which type of system（）.
Loran-C uses the multiple pulse system because（）.
（）is not a component of GPS.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
Would you mind（）your DF?
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.
The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.