航海英語(yǔ)GMDSS單項(xiàng)選擇題每日一練(2019.01.10)

來(lái)源：考試資料網(wǎng)

1 In areas covered by Inmarsat HF can be used as an（）to satellite communications.

2 IMO has decided that all ships over 300TGt must be fitted with a NAVTEX receiver（）.

3 A Class C EPIRB（）.

4 Equipment requirement vary according to（）.

5 Ships sailing in（）are able to receive and print out EGC messages.