流行性出血热早期出血的主要原因是
A.DlC
B.血管壁损伤、血小板减少和功能障碍
C.凝血因子缺乏
D.尿毒症
E.肝素样物质增多
参考答案:B
—________, David? You don't look well.
—I have a fever and I feel tired.[ ]
A. What are you
B. What's the matter
C. What's the wrong
D. What's that
诊断特发性血小板减少性紫癜最有意义的是()
A.出血时间延长
B.血块回缩不佳
C.毛细血管脆性增加
D.血小板功能异常
E.骨髓巨核细胞增加