单项选择题
A.red star shell B.searchlight C.burning barrel D.orange smoke signal
Generally,you can best keep a vessel under steering con...
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
Generally speaking,the most favorable bottom for anchor...
单项选择题Generally speaking,the most favorable bottom for anchoring is().
A.very soft mud B.rocky C.a mixture of mud and clay D.loose sand
As a last resort,a tourniquet can be used to().A.hold a...
单项选择题As a last resort,a tourniquet can be used to().
A.hold a victim in a stretcher B.stop uncontrolled bleeding C.hold a large bandage in place D.restrain a delirious victim