单项选择题
The distance traveled by the center of gravity perpendicular to the original course is（）.
A.transfer B.advance C.kick D.tactical diameter
单项选择题 The rule state that a vessel overtaking another vessel is relieved of her duty to keep clear when（）.
单项选择题 If a hurricane several hundred miles away is moving in your general direction your barometer would（）.
单项选择题 （）locates in the aftmost part of a ship.
