He is（）a carpenter as a chief officer. 正确。 错误。
一个可食物种模拟一个不可食物种称为：（） 正确。 错误。
Even in the absence of express instructions，the authority of the master of a ship is very large and（）to all acts that are usual and necessary for the employment of the ship. 正确。 错误。
四步教学法中四个过程依次为演示、讲解、准备、验证。 正确。 错误。
During an abandonment or drill，the first person to arrive at the survival craft should（）. 正确。 错误。
船舶在港内发生火灾时，船长是消防总体指挥。
