单项选择题
Any action to avoid collision shall,if the circumstances of the case admit,(),made in ample time and with due regard to the observance of good seamanship.
A.be initiative B.be positive C.be negative D.be positively
单项选择题 Which one of the followings is not required on survival crafts?()
单项选择题 Who is responsible for the voyage plan?()
单项选择题 What is the direction of rotation of tropical cyclones,tropical storms and hurricanes in the Northern Hemisphere?()