单项选择题
---Slow ahead both engines! ---Slow ahead both engines! （）!
A. Both engines slow ahead B. Engine slow ahead port C. Engine slow ahead starboard D. Engine both ahead
A. Engine ahead slow! B. Engine slow ahead! C. Ahead engine slow! D. Yes, sir
A. Engine dead slow ahead! B. Engine dead ahead slow! C. Engine slow dead ahead! D. I do it right now