Two sites are using a multisite centralized call processing model. The voice gateway on the remote branch has lost IP connectivity to its Cisco CallManager server. Which feature enables the remote gateway to take the role of the call agent during the WAN failure?() ["automated alternate routing (AAR)","Cisco CallManager Attendant Console","real-time protocol (RTP)","Survivable Remote Site Telephony (SRST)"]
淀杂基
CsCl单位晶胞中的“分子数”为1,Cs+填充在Cl-所构成的()空隙中。 ["全部四面体","全部八面体","全部立方体","1\/2八面体"]
认知心理学
包裹运价的起码里程为()。 ["20KM","40KM","100KM","400KM"]
试述流行性乙型脑炎的治疗。