A.ITU
B.IMO
C.MSC
D.WMO
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A.promote
B.improve
C.guarantee
D.both A and B
A.taking the place of the radio system
B.introducing a new life-saving system
C.saving the vessels in distress
D.improving the communication on land
A.was suffering
B.is suffering
C.has suffered
D.has been suffering
A.see
B.seeing
C.be seen
D.being seen
A.where
B.when
C.after
D.unless
最新試題
（）will form the basis for distress alerting and safety calling.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
Ship-to-ship distress alerting should be conducted by（）.
All coast radio stations（）DSC installed for VHF and HF.
COSPAS-SARSAT is intended to be used for（）.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
The advantage of geostationary satellites is（）.
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 quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.