从综合视角看，管理信息系统具有（）结构。
审美情趣
Your company has a main office and a branch office. The offices connect by using WAN links. The network consists of a single Active Directory domain. An Active Directory site exists for each office. Servers in both offices run Windows Server 2008 R2 Enterprise. You plan to deploy a failover cluster solution to service users in both offices. You need to plan a failover cluster to meet the following requirements： èMaintain the availability of services if a single server fails èMinimize the number of servers required What should you include in your plan？（） ["Deploy a failover cluster that contains one node in each office.","Deploy a failover cluster that contains two nodes in each office.","In the main office， deploy a failover cluster that contains one node. In the branch office， deploy a failover cluster that contains one node.","In the main office， deploy a failover cluster that contains two nodes. In the branch office， deploy a failover cluster that contains two nodes."]
造成触电事故的原因主要有哪些？
保险的基本原则有（） ["近因原则","损失补偿原则","保险利益原则","诚实信用原则"]
重婚
