单项选择题
A. Low speed control . B. Inching control . C. High speed control. D. Slow speed control.
前进三!（）A. Full ahead!B. Slow ahead!C. Dead ahead!D. Ahea...
单项选择题前进三!（）
A. Full ahead! B. Slow ahead! C. Dead ahead! D. Ahead three.
紧急后退三。（）A. Full astern！B. Double full astern！C. Emergen...
单项选择题紧急后退三。（）
A. Full astern！ B. Double full astern！ C. Emergency full astern！ D. Emergency three astern！
甲板部有九个人。（）A. There are nine people in the deck departme...
单项选择题甲板部有九个人。（）
A. There are nine people in the deck department. B. The department has nine people C. There are nine people in the deck de D. The deck has nine people.
