低危组髓母细胞瘤的5年生存率为()。
A.20%-0%
B.30%-40%
C.40%-50%
D.50%-60%
E.70%-80%
参考答案:E
We were that a big fire had broken out in the next town. [ ]
A. informed
B. introduced
C. given
D. talked
按卫生部通知要求,甲型H1N1流感标本核酸检测应在生物安全()实验室或更高等级生物安全实验室中操作,所有均须在()内进行。
A.三级,II级生物安全柜
B.二级,II级生物安全柜
C.三级,I级生物安全柜
D.二级,I级生物安全柜