再障与下列哪项难鉴别A.非白血性白血病 B.缺铁性贫血 C.脾功能亢进 D.PNH不 发布时间:2017-06-10 15:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 再障与下列哪项难鉴别A.非白血性白血病B.缺铁性贫血C.脾功能亢进D.PNH不发作型E.巨幼细胞贫血
题型:单项选择题 The frightened people ____ from the burning bus before the firefighters arrived. [ ]A. have fled B. had fled C. flee D. fled 查看答案