航海英語(yǔ)緊急用語(yǔ)單項(xiàng)選擇題每日一練(2019.01.19)

來(lái)源：考試資料網(wǎng)

1 After a vessel transmits the original distress message，what signal should be sent to allow ships to take RDF bearings?（）

2 Tripping defects in anchors frequently occur in（）.

3 There is plenty of（）at this area.

4 The radiotelegraph alarm signal is（）.

5 The towing light is a(n)（）.