Sun Stable is a global insurance company with headquarters located in Houston， Texas. Thecampus there is made up of a number of office buildings located within the same vicinity. In 2003，a new building. Building 331B was added. The additional building houses approximately 1000 employees. Ratherthan deploy a private branch exchange （PBX） in the new building， Sun Stable has decided toimplement an IP telephony solution. External calls will be carried across a MAN link to anotherbuilding， where a gateway connects into the worldwide PBX network of Sun Stable. Voice mail andunified messaging components are required and all IP phones and workstations should be on separate VLANs and IP subnets. ActualTests.comWhich IP telephony deployment best suits their need？（） [" single-site"," multisite with centralized call processing"," multisite with distributed call processing"," clustering over the WAN"]
神经胶质细胞的功能是（） ["起绝缘作用提高传导速度","起到脑清洁工的作用","必要时参与神经信息的传递","形成脑血屏障阻止有害物进入脑"]
护理道德教育的原则是什么？
以下哪种协议为增强型距离矢量路由协议（） ["RIP v1","RIP v2","EIGRP","OSPF"]
“四过硬”是指（） ["在生产操作上过硬","在安全管理上过硬","在机器设备使用上过硬","在安全技术上过硬","在复杂情况面前过硬"]
《教育法》中规定，学生有遵守学生行为规范，尊敬师长，（）和（）的义务。
