航海英語(yǔ)VHF通信單項(xiàng)選擇題每日一練(2019.03.27)

來(lái)源：考試資料網(wǎng)

1 There is a（）mine in position 50°N，30°W.

2 （），you can’t finish discharging tomorrow!

3 （）your present speed?

4 If you know that the vessel you are about to call on the VHF radio maintains a radio watch on both the working and the calling frequencies，which frequency should you call on? （）

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5 A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.

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