单项选择题
A. How answers B. What rudder C. How rudder D.B+C
（）（尾推）stop。A. Bow thrustB. Bow thrusterC. Stern thrustD...
单项选择题（）（尾推）stop。
A. Bow thrust B. Bow thruster C. Stern thrust D. Stern thruster
（）（首推）stop.A. Bow thrustB. Bow thrusterC. Stern thrustD...
单项选择题（）（首推）stop.
Ease to five! （）(右舵5)!A. Port fiveB. Starboard fiveC. S...
单项选择题Ease to five! （）(右舵5)!
A. Port five B. Starboard five C. Starboard ten D. Right five
