结构主义
Your network consists of a single Active Directory domain. You have a DHCP server named DHCP1 that runs Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Service Pack 3 （SP3）. All client computers are configured as DHCP clients. You change the IP address on DHCP1. Users report that they cannot connect to the network. You verify that the client computers do not receive an IP address configuration from DHCP1. You need to ensure that the client computers receive an IP addressconfiguration from DHCP1. What should you do on DHCP1？（） ["Authorize the server.","Reconcile the scope.","Enable conflict resolution.","Restore the server configuration by using the DHCP snap-in."]
能够提供对某一个体、某一团体或某一组织的详尽分析，能提供变化的动态方面的见解，对于组织内部问题的诊断和纠正极有帮助的方法是（） ["测验法","观察法","个案法","实验法"]
（）是一种常用的改善数据库性能的技术。
安全生产许可证有效期满需要延期的，企业应当于期满前（）向原安全生产许可证颁发管理机关办理延期手续。 ["30日","3个月","6个月","1年"]
真空下降的现象有哪些？
