单项选择题
A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）
A.Rub the toes briskly
B.Elevate the foot slightly
C.Rewarm rapidly
D.Give aspirin or other medication for pain if necessary
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A copy of the Articles of Agreement，less the signatures，is required to be posted. This document is called the（）.
A.fo'c'sle Card
B.Articles Copy
C.Voyage Agreement
D.Shipping Articles -
单项选择题
A continuous watertight bulkhead on a ship is normally also a(n)（）.
A.structural bulkhead
B.exterior bulkhead
C.centerline bulkhead
D.joiner bulkhead -
单项选择题
A continual worsening of the list or trim of any floating ship indicates（）.
A.negative GM
B.progressive flooding
C.structural failure
D.an immediate need to counterflood
