A.two
B.three
C.more than two
D.more than three
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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
A.can suppress
B.can be suppressed
C.can not be suppressed
D.are to be suppressed
最新試題
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
All coast radio stations（）DSC installed for VHF and HF.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
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.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.