病人因乏力、心悸、头晕、感染、发热2个月来医院检查,诊断为再障,其发病首位病因是()
A.药物及化学物质
B.电离辐射
C.感染
D.慢性失血
E.遗传
参考答案:A
Lady Gaga has put off her concerts because of the difficulties _____ by the ongoing strikes.[ ]
A. causing
B. to cause
C. to be caused
D. caused
作业队、油建队及筑路队的主导目标激励奖兑现系数为2.0。