下面哪一种光盘可以擦除（）。 CD ROM。 CD-R。 CD-RW。 DVD ROM。
满载救生筏体和属具备品的容器在落入水中后要求（）。 在水中能够漂浮、时间不少于30min。 在水中能够漂浮、时间不少于40min。 在水中能够漂浮、时间不少于20mi。
煤塔的储量为（）t。 1000。 1200。 1300。
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（）. Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel。 State his concerns to the Pilot but do not interfere with the handling of the vessel。 Direct the Pilot to stop the vessel and anchor if necessary until the situation clears。 Recommend an alternative action and if not followed relieve the Pilot。
显示屏上画面的每一点称为一个（）。 三原色的色点。 亮点。 像素。 暗点。
The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.
