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【单选题】
患者，女，40岁，患风心病10年，近来心悸、胸闷痛、气短、下肢浮肿、尿少。数分钟前突然晕倒，意识丧失，皮肤苍白，唇绀，大动脉搏动扪不到，呼吸停止，其原因是
A.
脑栓塞
B.
急性衰竭
C.
癫痫大发作
D.
心脏性猝死
E.
急性有心衰竭
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