关于基本电节律的叙述，下面哪一项是错误的（） ["与生电性钠泵的周期性活动有关","当其去极的幅值超过一定临界时，可触发一个或多个动作电位","它的产生是肌源性的","去除神经体液因素后不能产生","是平滑肌收缩的控制波"]
Which two statements are true about IBGP neighbor relationships?（） [" The BGP split - horizon rule specifies that routes learned via EBGP are never propagated to other IBGP peers."," The BGP split horizon rule specifies that routes learned via IBGP are never propagated to other IBGP peers."," A full - mesh IBGP requires that neighbor relationships be established between a ll BGP enabled routers in the autonomous system."," IBGP neighbors must be in different autonomous systems."," An EGP or static routing is required between IBGP neighbors."]
An SVI has been configured on a device. Which two statements are true about a switched virtual interface （SVI）？（） ["An SVI is normally created for the default VLAN （VLAN1） to permit remote switch administration.","Multiple SVIs can be associated with a VLAN.","SVI is another name for a routed port.","An SVI is created by entering the no switchport command in interface configuration mode. ","An SVI provides a default gateway for a VLAN."]
胡锦涛指出，当今世界正在发生深刻复杂变化，（）仍然是时代主题。 ["改革开放","经济建设","和平与发展","经济全球化"]
（）是中国古代普遍采用并且一直沿用到现在的广告形式。 ["招牌广告","旗帜广告","幌子广告","灯笼广告"]
DNS域名空间的结构是什么样的？
