A.Switch
B.To switch
C.Switched
D.Will switch
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A.My using
B.I use
C.To use
D.I will use
A.Rate of turn
B.Latitude and longitude
C.Navigational status
D.All of the above
A.Call sign and IMO number
B.Course over ground and MMSI
C.MMSI number and call sign
D.Route Plan and navigational status
A.A decreasing reading on loran pair 9960-X
B.The bearing of Wolf Trap Light changing to the right
C.Increasing soundings
D.The bearing of Wolf Trap Light changing to the left
A.It cannot be used in all parts of the world
B.There are 12 functioning GPS satellites at present
C.It may be suspended without warning
D.Two position lines are used to give a 2D fix
最新試題
In using Loran-C，skywave reception gives greater range but is（）.
The line connecting the Loran-C master station with a secondary station is called the（）.
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
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.
Would you mind（）your DF?
（）is not a component of GPS.
（）is a digitized“picture”of a chart.
Loran-C uses the multiple pulse system because（）.
The information received by AIS will be displayed on（）.
What does not contribute to the commercial GPS receiver position error（）.