A.If
B.Whenever
C.Because
D.Where
您可能感興趣的試卷
你可能感興趣的試題
A.transmit
B.to transmitting
C.transmitting
D.in transmitting
A.strike
B.strikes
C.are striking
D.struck
A.Avoiding
B.To be avoided
C.Avoided
D.To avoid
A.complete service
B.partial controlled
C.quite new
D.total co-ordinated
A.relevant to
B.relate to
C.in response to
D.in relation to
最新試題
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.
Ship-to-ship distress alerting should be conducted by（）.
The vessel has stayed in port for seven days because she needs（）.
COSPAS-SARSAT is intended to be used for（）.
The rescue coordination center may（）on stations which interfere with traffic.
Radio beacon can be activated（）in case of distress.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
Radio communication（）for many years and helps to save tens of thousands of lives.
By using（）system a ship can send a distress message and know with certainty it will be received.