单项选择题
The symptoms of a fractured back are（）.
A.leg cramps in the muscles in one or both legs
B.pain and uncontrolled jerking of the legs and arms
C.vomiting and involuntary urination or bowel movement
D.pain at the site of the fracture and possible numbness or paralysis below the injury
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In any major injury to a person，first aid includes the treatment for the injury and（）.
A.application of CPR
B.removal of any foreign objects
C.administration of oxygen
D.for traumatic shock -
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A man has suffered a burn on the arm. There is extensive damage to the skin with charring present. How is this injury classified using standard medical terminology?（）
A.Dermal burn
B.Third-degree burn
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During the course of a voyage，a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident，Injury or Death if the（）.
A.injured needs first aid
B.injured is incapacitated
C.injury results in loss of life only
D.injury is the result of misconduct
