單項(xiàng)選擇題Distress signal are always stored in the memory so as to start（）.
A.local-mode coverage
B.SAR operations
C.data process
D.continuous broadcast
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1.單項(xiàng)選擇題Which Inmarsat system applies store-and-forward messaging?（）
A.Inmarsat-A
B.Inmarsat-C
C.Inmarsat-B
D.Inmarsat-M
2.單項(xiàng)選擇題（）are operated as a secondary method of alerting in the GMDSS.
A.satellite EPIRBs
B.Non-satellite EPIRBs
C.SES and DSC
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The advantage of geostationary satellites is（）.
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Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
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（）will form the basis for distress alerting and safety calling.
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For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
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