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【单选题】
关于妊娠期贫血的诊断指标正确的是:A.
血红蛋白＜ 120g/L ，红细胞计数＜ 3.5 × 10 12 /L, 或血细胞比容＜ 0.30
B.
血红蛋白＜ 110g/L ，红细胞计数＜ 3.5 × 10 12 /L, 或血细胞比容＜ 0.25
C.
血红蛋白＜ 100g/L ，红细胞计数＜ 3.5 × 10 12 /L, 或血细胞比容＜ 0.33
D.
血红蛋白＜ 100g/L ，红细胞计数＜ 3.5 × 10 12 /L, 或血细胞比容＜ 0.30
E.
血红蛋白＜ 110g/L ，红细胞计数＜ 3.5 × 10 12 /L, 或血细胞比容＜ 0.30
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