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單項(xiàng)選擇題

（）will form the basis for distress alerting and safety calling.

A.GMDSS
B.EGC
C.MSI
D.DSC

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單項(xiàng)選擇題

Distress signal are always stored in the memory so as to start（）.

A.local-mode coverage
B.SAR operation
C.data process
D.continuous broadcast

單項(xiàng)選擇題

When the power of SART is on, it will（）.

A.transmit distress signal
B.send response signal
C.transmit the signal of ship’s position
D.be started by X-band radar

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