第2题: [单项选择]关于MDS,下列叙述正确的是() A. 有未成熟前体细胞异常定位(ALIP)即可诊断为MDS B. 预后较好,不会发生急性白血病变 C. 原发性较继发性MDS多见 D. 幼红细胞PAS染色呈阴性 E. 属造血干细胞克隆性疾病 参考答案:E 答案解析:骨髓异常综台征(MDS)是一组获得性的造血功能严重紊乱的造血干细胞克隆性疾病。
A. have been cancelled B. are put to a later time C. took place according to schedule D. took place ahead of schedule 参考答案:B 答案解析:[听力原文] 22-23 Planned peace talks between rebels and the Zairian government again have been po