航海英語(yǔ)遇險(xiǎn)通信單項(xiàng)選擇題每日一練(2019.01.22)

來(lái)源：考試資料網(wǎng)

1 How is “radio silence” imposed?（）

2 Which action should you take after sending a false distress alert on VHF?（）

3 The signal to guide vessels in distress，which indicates，“This is the best place to land” is the（）.

4 A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.

5 Distress signals may be（）.