A.see
B.seeing
C.be seen
D.being seen
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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
A.inspecting
B.inspected
C.inspects
D.having inspected
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By using（）system a ship can send a distress message and know with certainty it will be received.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
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.
Radio communication（）for many years and helps to save tens of thousands of lives.
Please use（）for（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
The priority of EGC messages is classified by（）.
What following is not among the function of SOLAS ships?（）