单项选择题
All of the following constitute special circumstances EXCEPT（）.
A.Three vessels meeting so as to cross each other's course B.A vessel meeting a vessel that is backing out of a slip C.An overtaking situation that has reached in extremis D.A vessel fishing with nets meeting a sailing vessel
单项选择题 All of the following are practices of good seamanship EXCEPT（）.
单项选择题 A vessel restricted in her ability to maneuver is one which（）.
单项选择题 A vessel is in sight of another vessel when she（）.
