航海英語(yǔ)航海圖書(shū)資料單項(xiàng)選擇題每日一練(2018.10.29)

來(lái)源：考試資料網(wǎng)

1 Place names used should be those （）.

2 A mobile offshore drilling unit must display obstruction lights when it is on the waters over the Outer Continental Shelf and is（）.

3 A report of casualty to a mobile offshore drilling unit must be made in writing to which office? （）

4 （）is a term denoting the determination of a ship’s position by observations of Celestial or terrestrial objects，or by a combination of both．

5 A lashing used to secure two barges side by side，lashed in an "X" fashion，is called a （）.