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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单项选择题
A crew member has suffered frostbite to the toes of both feet. You should（）.
A.immerse the feet in warm water
B.warm the feet with a heat lamp
C.warm the feet at room temperature
D.rub the feet -
单项选择题
A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.
A.turning the victims's head to the side to keep his airway open
B.positioning the victim so the head is lower than the body
C.giving the victim water if he is thirsty，but no food
D.elevating the head and shoulders slightly with a pillow -
单项选择题
A compound fracture is a fracture in which（）.
A.more than one bone is broken
B.the same bone is broken in more than one place
C.there is never any internal bleeding
D.the bone may be visible
