患者因急性心肌梗死入院,查体:血压120/70mmHg, 心率104次/分,双肺底偶闻湿啰音,心尖部S3。患者心功能(Killip分级)应属于
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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