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航海英語GMDSS單項(xiàng)選擇題每日一練(2019.01.10)

來源：考試資料網(wǎng)

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

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

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3 A Class C EPIRB（）.

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4 Equipment requirement vary according to（）.

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

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