单项选择题
Application for a waiver of any requirements of the regulations for oil transfer operations must be submitted to the().
A.District Commander B.Commandant C.Captain of the Port D.nearest Coast Guard office
单项选择题 Apparent wind speed blowing across a ship under tow can be measured by a(n)().
单项选择题 Apparent time is based on().
单项选择题 Aphelion is the point where the Sun().