單項選擇題The first step you would take in helping an unconscious victim who is not breathing is（）
A.stop bleeding
B.open airway
C.mouth-to-mouth respiration
D.call for help
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1.單項選擇題Your assigned emergency station aboard ship can be found on the ship’s （）
A.station bill
B.clearance papers
C.certificate of inspection
D.permit to proceed
2.單項選擇題The minimum amount of oxygen required to support life is（）
A.14 percent
B.15 percent
C.16 percent
D.17 percent
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