单项选择题
The ship which strikes any other vessel is called the（）.
A.Ship in the wrong
B.Responsible vessel
C.Vessel to be responsible
D.Wrong ship
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The self-contained breathing device should not be used in which situation（）.
A.Oxygen deficient spaces
B.Compartments containing poisonous vapors
C.Fighting fires that produce heavy smoke
D.Underwater search -
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The rescuer can best provide an airtight seal during mouth-to-mouth resuscitation by pinching the victim’s nostrils and（）.
A.Cupping a hand around the patient's mouth
B.Keeping the head elevated
C.Applying his mouth tightly over the victim's mouth
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The key to rescuing a man overboard is（）.
A.Good communication
B.A dedicated crew
C.Good equipment
D.Well-conducted drills
