哪种感染与病毒的致肿瘤性有密切关系()。
A.慢病毒感染
B.潜伏感染
C.稳定状态感染
D.整合感染
E.形成包涵体
参考答案:D
以下哪项与猫眼疮病因无关:
A.药物过敏
B.食物过敏
C.体内病灶感染
D.维生素缺乏
E.禀赋不耐
()is the budgeted amount for the work actually completed on the schedule activity or WBS component during a given time period.
A.Planned value
B.Earned value
C.Actual cost
D.Cost variance