單項選擇題The first communication satellite was used for the purpose of（）.
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
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1.單項選擇題A sailor on board（）from appendicitis and required operation immediately.
A.was suffering
B.is suffering
C.has suffered
D.has been suffering
2.單項選擇題The foreign seafarers said goodbye to us and looked forward to（）each other soon.
A.see
B.seeing
C.be seen
D.being seen
最新試題
The priority of EGC messages is classified by（）.
題型：單項選擇題
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
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Please use（）for（）.
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On-scene communications will normally take place between（）.
題型：單項選擇題
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.
題型：單項選擇題