下列行为中，构成工程重大安全事故罪的行为应是（）。 ["工人在施工中不慎从楼上掉下来摔死","工地在建地下隐蔽工程时，对裸露地面的钢筋未在周围做防护措施，也没有醒目标识，造成经过这里的关某摔成重伤","某工程监理单位在进行检查过程中，发现施工单位过度追求施工进度，致使工程质量严重不符合要求，却不依法行使监理职能，造成建筑物倒塌，砸死砸伤多人的严重后果","工地工人栾某在工地食堂下毒，致使工人集体中毒"]
零件上被测的（）与测量基准间的直线距离称为线性尺寸。 ["立面","点、线、面","平面","曲面"]
放散管口必须高出煤气管道设备和走台（）米，离地面不小于10米。 ["2","3","4"]
影响建设工程项目质量形成的人的因素为（）。 ["A.仅指操作者 ","B.仅指管理者 ","C.仅指施工单位 ","D.泛指与工程有关的单位、组织及个人"]
You have a single Active Directory directory service domain. You back up your domain controllers on a nightly basis. An organizational unit （OU） is accidently deleted. You need to restore the objects that were located in the OU. What should you do？（） [" Perform a nonauthoritative restore of the domain controller."," Perform an authoritative restore of the domain controller."," Restore the system state data on the domain controller."," Restore the system volume on the domain controller."]
抽样推断有哪些基本特点？
