航海英語狹水道、冰區(qū)與運河航行單項選擇題每日一練(2019.01.17)

來源：考試資料網(wǎng)

1 Ice blink is（）.

2 Small floes of rough，hummocky sea ice capable of damaging a vessel（）.

3 A tow that veers to the side on the end of the towline is said to（）.

4 A tide is called diurnal when（）.

5 For operations in pack ice，a vessel should（）.