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【填空题】The operation in CPR can be summarized briefly into 3 steps CAB, which stands for ____, ____, ____.
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【填空题】The three pillars in terms of diagnosing heart attack are ____, ____, and ____.
【判断题】Obstructive deposits in coronary arteries are the real trigger of a heart attack.
【判断题】The device AED works by shocking the heart back into a normal rhythm and makes CPR more effective.
对于老年消费对象，促销方案更加适宜
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