[问答题] 什么是系统切换，请简述系统切换的方式。

作者的语境条件包括历史情境、意识形态氛围、（）、文学创新的需要。 ["想象力","个体体验","敏感度","文学资源场"] 现行学校管理制度的缺陷有（） ["现行学校管理体制导致学生流失严重","在基础教育阶段区分重点学校与非重点学校","过分重视德育","过分重视法律教育"] 原来蛇紫嫣红开遍，（）。作者汤显祖 Your network contains a server named Server1 that runs Windows Server 2008 R2. Server1 has the SNMP Service installed.You perform an SNMP query against Server1 and discover that the query returns the incorrect identification information.You need to change the identification information returned by Server1. What should you do? （） ["From the properties of the SNMP Service，modify the Agent settings.","From the properties of the SNMP Service，modify the General settings.","From the properties of the SNMP Trap Service，modify the Logon settings.","From the properties of the SNMP Trap Service，modify the General settings."] 脚手架应铺设牢靠、严实，并应用安全网双层兜底；施工层以下每隔（）米应用安全网封闭。 ["A.8 ","B.12 ","C.9 ","D.10"] 什么是系统切换，请简述系统切换的方式。