航海英語救助合同與救助公約單項選擇題每日一練(2019.08.03)

來源：考試資料網(wǎng)

1 A vessel is underway with a work stage rigged over the side. A seaman may work on the stage，but only when（）.

2 A vessel towing a barge astern would show，at the stern（）.

3 A vessel showing a green light over a white light in a vertical line above the level of the sidelights is（）.

4 A vessel is entering port “A” for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do? （）

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5 A vessel may use any sound or light signals to attract the attention of another vessel as long as（）.

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