简述奥苏伯尔和鲁宾逊的问题解决模式。
Company.com has employed you as their Exchange administrator.The Company.com network contains Mailbox servers that are configured to run either Exchange Server 2007 or Exchange Server 2010.During the course of the week you receive an instruction from the CIO to ensure that all e-mail messages stored for more than 90 days in the Inbox folder of clients be deleted. What should you do？（） Your best option would be to create a new retention policy.。 Your best option would be to create a new message classification.。 Your best option would be to create new managed content settings.。 Your best option would be to create a new managed custom folder.。
Internet是基于TCP/IP协议进行通信和连接的，每一台主机都有一个唯一的标识固定的（）。 DNS。 IP地址。 域名。 网卡。
印花税
生产力与生产关系是（）。 生产力与生产关系是矛盾对立的关系。 生产关系决定生产力的发展水平。 生产关系一定要适合生产力性质。 经济基础决定生产关系。
当前生物多样性大规模丧失的主要原因是（）
