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
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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
A.can suppress
B.can be suppressed
C.can not be suppressed
D.are to be suppressed
A.frequency allocated
B.both language and frequency
C.language used
D.transmission power and time
最新試題
By using（）system a ship can send a distress message and know with certainty it will be received.
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.
SOLAS ships shall be equipped with（）.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
What following is not among the function of SOLAS ships?（）
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
Before GMDSS, if the radio officer on board is serious ill,（）.
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.