航海英語航行值班與海上避碰單項(xiàng)選擇題每日一練(2019.01.12)

來源：考試資料網(wǎng)

1 You are approaching another vessel and are not sure whether danger of collision exists. You must assume（）.

2 Where does the look-out man stand?（）.

3 A vessel crossing a river on the Western Rivers has the right of way over（）.

4 In determining if risk of collision exists，if there is any doubt，such risk shall be deemed to（）.

5 A vessel approaching a narrow channel shall（）.