航海英語航行值班與海上避碰單項(xiàng)選擇題每日一練(2019.01.21)

來源：考試資料網(wǎng)

1 When you doubt the existence of risk of collision,（）.

2 In determining a safe speed（）shall not be among those taken into account.

3 In a crossing situation，the stand-on vessel should normally（）.

4 A vessel being towed will show（）.

5 In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.