急性再生障碍性贫血早期最突出的临床表现是()。
A.出血和感染
B.进行性贫血
C.进行性消瘦
D.肝、脾、淋巴结肿大
E.黄疸
参考答案:A
已知一组数据:3,4,3,5,6,7,3,6,8,10,求其中位数。
With the electricity________because of the road repairs, the whole building was completely dark.[ ]
A. cut up
B. cut off
C. cut out
D. cut down