A. Stern thrust stop. B. Stern stop. C. Bow thrust stop.
单项选择题多少转？（）
A. How many revolutions? B. How many rings? C. How much revolutions? D. What revolution?
单项选择题航向复原。（）
A. Course again. B. Course two. C. Course more. D. Course line.
单项选择题舵不灵。（）
A. No steering. B. No steerage. C. A+B+D D. No answer.
单项选择题留心操舵。（）
A. Mind the wheel. B. Be careful about steering. C. Mind the helm. D. A+C
单项选择题右舵有点慢。（）
A. Starboard a bit sluggish. B. Port a bit sluggish. C. Port ten. D. Starboard slow.
