A.besides the polar regions
B.including the North Pole and the South Pole
C.above 70N and below 70S
D.as far north and south 70
您可能感興趣的試卷
你可能感興趣的試題
A.satellite network
B.Satellite Link
C.INMARSAT
D.Satellite System
A.To run faster than ever
B.To go forward
C.To march without stopping
D.A significant symbol of a great improvement in maritime communication
A.the weather is always terrible
B.the condition there is complicated
C.the signals are too strong
D.their SES may receive the signals from unwanted satellite
A.from any Inmarsat satellite
B.from any appropriate Navtex and EGC station
C.via the satellite the SES is tracking
D.from any RCC and coast station
A.identify
B.Correct
C.Reject
D.Print out
最新試題
Radio communication()for many years and helps to save tens of thousands of lives.
The rescue coordination center may()on stations which interfere with traffic.
Ship-to-ship distress alerting should be conducted by().
International Navtex service means the coordinated broadcast and automatic reception on()khz of maritime safety information by narrow-band direct-printing telegraphy using English language.
()will form the basis for distress alerting and safety calling.
SOLAS ships shall be equipped with().
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,()the equipment fitted on ship and the area in which the incident occurs.
The priority of EGC messages is classified by().
Before GMDSS, if the radio officer on board is serious ill,().
The advantage of geostationary satellites is().