单项选择题
A.there are no other vessels around
B.operating in a narrow channel
C.the Master enters it in the ship's log
D.necessary to avoid immediate danger
单项选择题 The Light List shows a lighted aid to navigation on the left bank. This means that the light can be seen on the starboard side of a vessel（）.
单项选择题 The court has the power to（）the time for commencing arbitration proceedings if it is of the opinion that in the circumstances of the case undue hardship would otherwise be caused.
单项选择题 The approach to the roads and harbor from the（）entails no difficulty.