单选题
1分
Ship propulsion normally occurs with the help of a ______ , which is the term most widely used in En...
Ship propulsion normally occurs with the help of a ______ , which is the term most widely used in English, al?though the word “screw” is sometimes seen, inter alia in combinations such as a “twin-screw” propulsion plant.
参考答案: D
参考解析: 注:通常船舶在螺旋桨的作用下产生推力,在英语中用“propeller”表示螺旋桨最常见,