航海英語(yǔ)緊急用語(yǔ)單項(xiàng)選擇題每日一練(2019.01.20)

來(lái)源：考試資料網(wǎng)

1 Which radiotelephone signal indicates receipt of a distress message?（）

2 What are symptom(s) of a ruptured appendix?（）

3 The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.

4 To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.

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