A.repairs
B.repairing
C.repaired
D.being repaired
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A.which is assisted
B.that assist you
C.when you assisted
D.when being assisting
A.the range of antenna can cover everywhere in the world
B.we can know the ship’s exact position
C.that the distress alert can be located as soon as possible
D.antenna of permanent earth stations may be directed towards fixed points in the sky
A.which
B.on which
C.at which
D.in which
A.it necessary
B.it is necessary
C.it necessary to
D.necessary
A.depend on
B.depending on
C.dependent on
D.depended on
最新試題
SOLAS ships shall be equipped with（）.
On-scene communications will normally take place between（）.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
（）will form the basis for distress alerting and safety calling.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
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.
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.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
COSPAS-SARSAT is intended to be used for（）.
We consider（）send a helicopter with medical facilities to the distress area.