单项选择题
A.is holding course and speed
B.is turning to starboard
C.intends to pass port to port
D.will keep out of the way of the stand-on vessel
单项选择题 In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels except a vessel（）.
单项选择题 In a crossing situation,the vessel which has the other on her own starboard side shall（）.
单项选择题 In a narrow channel, a signal of intent which must be answered by the other vessel, is sounded by a vessel（）.