【单选题】【消耗次数：1】
老年急性白血病一般多指年愈（ ）岁的白血病患者，是一种病因不明的原发于造血干细胞的恶性疾病。
①
50
②
55
③
60
④
65
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相关题目
【单选题】
急性白血病根据FAB分型可以分为急性髓系白血病M0-M7型，急性淋巴细胞白血病可分为L1-L3型，其中急性髓系白血病M3型是（）
①
急性粒细胞白血病部分分化型
②
急性髓系白血病微分化型
③
急性早幼粒细胞白血病
④
急性单核细胞白血病
⑤
急性粒单核细胞白血病
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