错构瘤
参考答案:错构瘤:由于某些部位的组织过度增生、结构紊乱所形成的肿物。
The man_____ was an old classmate of mine.
A.you just talked to him
B.who just talked to
C.you just talked to
D.whom you just talked
( )措施专门用于应付项目的技术风险,它可以是一段时间或是一笔资金。
A.预算应急费 B.进度后备 C.技术后备 D.经济应急费