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單項選擇題

It is possible for ships to receive safety message transmitted by Navtex station（）.

A.in any INMARSAT regions
B.in each NAVTEX area
C.at any distance
D.in Areas A3 and A4

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單項選擇題

The frequency 518KHZ will be used to transmit（）and（）wanings in NAVTEX.

A.navigational / typhoon
B.traffic / meteorological
C.marine / hurricane
D.navigational / meteorological

單項選擇題

Distress alerts will be relayed on the（）when the RCC considers it necessary.

A.dedicated system
B.MSI broadcasts
C.518KHZ
D.channel 16

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