多器官功能障碍综合征是下列哪项疾病的严重阶段（）
A.SIRS
B.CARS
C.ALI/ARDS
D.肾功能衰竭
E.心力衰竭
参考答案：B
We ______ that he explain to us why he was late for the meeting yesterday.[ ]
A.defended
B. demanded
C. decided
D. designed
血红蛋白50g/L，血小板100×109/L，Coombs试验阳性（）
A．阵发性睡眠性血红蛋白尿
B．缺铁性贫血
C．再生障碍性贫血
D．自身免疫性溶血性贫血
