单项选择题
Epilepsy is a chronic nervous disorder characterized by（）.
A.severe nausea and cramps
B.muscular convulsions with partial or complete loss of consciousness
C.sudden thirst and craving for candy
D.severe agitation and desire to get out of closed spaces
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相关考题
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单项选择题
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.injury results in loss of life only
B.injury is the result of misconduct
C.injured is incapacitated
D.injured needs first aid -
单项选择题
After a person has been revived by artificial respiration，he should be（）.
A.walked around until he is back to normal
B.given several shots of whiskey
C.kept lying down and warm
D.allowed to do as he wishes -
单项选择题
According to the Chemical Data Guide，what does ethyl chloride produce when ignited?（）
A.Toxic fumes of oxides of nitrogen
B.Toxic fumes of lead
C.Poisonous phosgene gas
D.Poisonous chlorine gas
