A.55.5W
B.64.5E
C.15.5W
D.178E
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A.two
B.three
C.more than two
D.more than three
A.Space Segment, NCC, RCC, SES, and CES
B.Space Segment, a satellite system, C system, NCC and NCS
C.Space Segment, NCC, NCS, CES and SES
D.A system, C system, satellite system, earth stations and NCS
A.4
B.9
C.8
D.5
A.the weather is always terrible
B.the condition there is complicated
C.the signals are too strong
D.their SES may recive the signals from unwanted satellite
A.international NAVTEX Service
B.FleetNET Service
C.SafetyNet Service
D.WWNWS
最新試題
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
What following is not among the function of SOLAS ships?（）
Radio beacon can be activated（）in case of distress.
The advantage of geostationary satellites is（）.
The rescue coordination center may（）on stations which interfere with traffic.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Before GMDSS, if the radio officer on board is serious ill,（）.
Radio communication（）for many years and helps to save tens of thousands of lives.
Ship-to-ship distress alerting should be conducted by（）.