A.was suffering
B.is suffering
C.has suffered
D.has been suffering
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A.see
B.seeing
C.be seen
D.being seen
A.where
B.when
C.after
D.unless
A.That
B./
C.When
D.What
A.If
B.Whenever
C.Because
D.Where
A.transmit
B.to transmitting
C.transmitting
D.in transmitting
最新試題
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with()which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
()will form the basis for distress alerting and safety calling.
As each MSI message will have a unique identity, the printing of messages already received correctly is().
By using()system a ship can send a distress message and know with certainty it will be received.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their().
For COSPAS-SARSAT system,()usually transmit initial COSPAS-SARSAT alert.
We consider()send a helicopter with medical facilities to the distress area.
Every lifeboat which is fitted with a fixed two-way()radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
The rescue coordination center may()on stations which interfere with traffic.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through()system.