单项选择题
A reaching course is one in which the wind（）.
A.comes directly over the bow B.comes directly over the stern C.comes over an area extending from broad on the bow to the quarter D.has no effect on the vessel
单项选择题 A racetrack turn would be better than a Williamson turn in recovering a man overboard if （）.
单项选择题 While moving ahead，a twin-screw ship has an advantage over a single-screw ship because （）.
单项选择题 When towing astern，one way to reduce yawing of the tow is to（）.
