A.If
B.Whenever
C.Because
D.Where
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A.transmit
B.to transmitting
C.transmitting
D.in transmitting
A.inspecting
B.inspected
C.inspects
D.having inspected
A.coming into effect
B.moving to full effect
C.being based on force
D.coming into force
A.fixed
B.matched
C.fitted
D.equal
A.square
B.triangle
C.circle
D.rectangle
最新試題
（）will form the basis for distress alerting and safety calling.
The priority of EGC messages is classified by（）.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
All coast radio stations（）DSC installed for VHF and HF.
SOLAS ships shall be equipped with（）.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Before GMDSS, if the radio officer on board is serious ill,（）.