单项选择题
---“（）” ---“Two degrees on starboard.”
A. What rudder? B. How is the heading? C. How answer? D. What course?
单项选择题 “Port a little sluggish” means（）
单项选择题 Bow （）(推进器) full to starboard.
单项选择题 Keep to the middle of the（）(航道) ！
