167. On the high seas, a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a ______
举一反三
- What sound signal means the ship will be abandoned immediately? A: three prolonged blasts B: seven short blasts followed by one prolonged blasts C: one short and one long blast D: one short and followed by two prolonged blasts
- Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should___ A: ack your engines B: stop your engines and drift C: answer with one prolonged blast D: sound the danger signal
- If you hear more than six short blasts and one long blast of the whistle supplemented by the same signal on the general alarm，you should（）. A: start the fire pump B: go to your man overboard station C: go to your lifeboat station D: stand by for collisio
- Each group__________ one teacher and four students. A: is consisted of B: is consisting of C: consists of
- 83. A light signal consisting of three flashes means______