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【单选题】
关于重型胎盘早剥正确的是A.
子宫处于低张状态
B.
腹痛程度与胎盘后积血多少成正比
C.
贫血程度与外出血量相符
D.
子宫大小与妊娠月份相符
E.
胎位不正,胎心不清
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A.
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B.
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C.
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