皮皮学，免费搜题
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【单选题】
猝死后几分钟内进行CPR-BLS是提高存活率的“黄金时间”?()A.
4
B.
8
C.
10
D.
12
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皮皮学刷刷变学霸
举一反三
【单选题】Why did he fail the exam the first time?
A.
He was not well prepared.
B.
He did not get to the exam in time.
C.
He was not used to the test format.
D.
He did not follow the test procedure.
【简答题】He had failed in the exam. It made his father very angry. He had faild in the exam,
【简答题】A．He can't prepare for the exam. B．He doesn't think he needs to take the exam. C．John will take the exam instead of him. D．John will help him during the exam.
【简答题】琼脂的主要成分为琼脂糖和 两类。A. 琼脂胶
【单选题】What does the man mean?
A.
He has prepared for the exam.
B.
He couldn't prepare for the exam without notes.
C.
He doesn't have to prepare for the exam.
【简答题】he stayed up all night to study for the exam he opened the exam booklet to begin and fainted
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