Refer to the exhibit. All routers are configured for BGP. EBGP routes received on router R2 showup in the BGP table on routers R1 and R3 but not in their IP routing tables. What would causethis？（） ["EBGP multihop is not configured on routers R1 and R3","Routers R1 and R3 do not receive the same routes via an IGP","Synchronization in autonomous system 100 is turned is on","The BGP routers in autonomous system 100 are not logically fully-meshed","Synchronization in autonomous system 100 is turned is off"]
建筑屋顶利用太阳能的方式有以下哪几种（） ["A.太阳能被动制冷屋顶 ","B.太阳能热水器屋顶 ","C.太阳能主动制冷屋顶 ","D.太阳能光电屋顶 ","E.太阳能非光电屋顶"]
访谈调查最大的优点是（） ["灵活性强","使用较复杂的访谈提纲","不受书面语言文字的限制","容易进行深入调查"]
Which of these statements is true of routing protocols in a hub-and-spoke IPsec VPN topology?（） [" EIGRP can summarize per interface."," OSPF router databases remain independent."," When they are configured with stubs, EIGRP regularly floods the topology."," OSPF topology decisions are made independent of hierarchy or area."]
党的十五大在马克思主义学风上的新的理论阐述（） ["提出理论联系实际","提出学以致用","提出“认真学习，民主讨论，积极探索，求真务实”的风气","提出“一个中心，三个着眼于&rdquo"]
酶的生产方法包括哪些？
