單項選擇題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


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1.單項選擇題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

2.單項選擇題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

4.單項選擇題All the traces are()old ones.

A.clear
B.evident
C.obvious
D.apparently