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【单选题】
患儿，男性，1岁半。平日偏食，常有腹泻、咳嗽，已会独立行走，玩耍正常。近2个月来面色苍黄，逗之不笑，时有头部、肢体颤抖，不能。外周血象：血红蛋白100g／L，红细胞2．5×1012／L，白细胞数4×109／L，中性粒细胞分多。本例可诊断为
A.
营养不良伴低钙血症
B.
慢性腹泻伴低钙血症
C.
缺铁性贫血伴低钙血症
D.
营养性巨幼细胞贫血
E.
营养性缺铁性贫血
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