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【单选题】
男性,52岁,有消化性溃疡病史10余年,有多次出血史。本次出血后出现神志恍惚、四肢厥冷,无尿。查体,血压80/60 nmhg,心率120次/分,脉搏细弱。提示出血量为A.
300~600ml
B.
600~800ml
C.
800~1000ml
D.
1000-1500m
E.
>1500ml
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