单项选择题
Generally，you can best keep a vessel under steering control when the vessel has（）.
A.headway B.sternway C.no way on，with engines stopped D.no way on，with engines full ahead
单项选择题 Generally speaking，the most favorable bottom for anchoring is（）.
单项选择题 As a last resort，a tourniquet can be used to（）.
单项选择题 An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.
