单选题Which one of the following rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision（）.AEach shall keep her course and speedBEach shall alter her course to starboardCEach shall pass on the portside to the otherDEach shall indicate such action by one short blast on the whistle
单选题
Which one of the following rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision（）.
A
Each shall keep her course and speed
B
Each shall alter her course to starboard
C
Each shall pass on the portside to the other
D
Each shall indicate such action by one short blast on the whistle
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