A.local-mode coverage
B.SAR operation
C.data process
D.continuous broadcast
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A.transmit distress signal
B.send response signal
C.transmit the signal of ship’s position
D.be started by X-band radar
A.the main source of energy
B.emergency source of electrical power
C.the reserve source of energy
D.all of above
A.Goonhilly, UK
B.Yamaguchi, Japan
C.Perth, Australia
D.Southbury, USA
A.180E above the equator
B.64.5 E over the IOR
C.15.5W along the straight line
D.55.5W above the equator
A.complicated circumstances
B.changeable atmospheric pressure
C.large density of traffic
D.some strong signals from unwanted satellites
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What following is not among the function of SOLAS ships?（）
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Ship-to-ship distress alerting should be conducted by（）.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Radio communication（）for many years and helps to save tens of thousands of lives.
Before GMDSS, if the radio officer on board is serious ill,（）.
All coast radio stations（）DSC installed for VHF and HF.
The advantage of geostationary satellites is（）.
SOLAS ships shall be equipped with（）.