施工过程中发生的签证主要有：设计修改变更通知单、工程联系单、现场经济签证。
You have an Exchange Server 2010 organization. All users access their mailboxes by using Outlook Web App （OWA）. You need to plan a solution to reduce the number of e-mail messages that are accidentally sent todistribution groups that contain company executives. What should you include in the plan？（） custom MailTips。 dynamic distribution groups。 Outlook Protection Rules。 sharing policie。
某办公大楼由主楼和裙楼两部分组成，平面呈不规则四方形，主楼29层，裙楼4层，地下2层，总建筑面积81650m2。该工程5月份完成主体施工，屋面防水施工安排在8月份。屋面防水层由一层聚氨酯防水涂料和一层自粘SBS高分子防水卷材构成。裙楼地下室回填土施工时已将裙楼外脚手架拆除，在裙楼屋面防水层施工时，因工期紧没有搭设安全防护栏杆。
工人王某在铺贴卷材后退时不慎从屋面掉下，经医院抢救无效死亡。
裙楼屋面防水施工完成后，聚氨酯底胶配制时用的二甲苯稀释剂剩余不多，工人张某随手将剩余的二甲苯从屋面向外倒在了回填土上。主楼屋面防水工程检查验收时发现少量卷材起鼓，鼓泡有大有小，直径大的达到90mm，鼓泡割破后发现有冷凝水珠。经查阅相关技术资料后发现：没有基层含水率试验和防水卷材粘贴试验记录；屋面防水工程技术交底要求自粘SBS卷材搭接宽度为50mm，接缝口应用密封材料封严，宽度不小于5mm。从安全防护措施角度指出发生这一起伤亡事故的直接原因。
You perform a clean installation of Windows 7 on a computer. You need to ensure that you can runWindows XP Mode in Windows 7. What should you do?（） Enable hardware-assisted virtualization.。 Create a Data Execution Prevention (DEP) exception.。 Install Windows XP in the same partition as Windows 7.。 Install Windows XP in a different partition than Windows 7.。
维也纳学派
You work as the enterprise exchange administrator at Xxx .The Xxx network consists of a forest with a domain named xxx .The forest and domain functional levels are set at Windows Server 2003.The environment of Xxx currently makes use of Microsoft Exchange Server 2003 Service Pack 2 （SP2） as their messaging solution.You receive instruction from Xxx to migrate the messaging system to Exchange Server 2010.What action must you take to implement for the Microsoft Exchange Server 2010？（）
