对于采用双归接入到PE的接入点，优先采用EBGP路由协议，其次采用静态路由，实现负载分担、路由控制和链路备份
1、正确正确
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Thebabyalwayssleepswithhiseyeshalf_____.
Howlongdidtheconcert______?
________,thefirstsettlersfoundinNewZealandmanystrangebirdsandanimalsthatexistnowhereelseintheworld.
Thesignattheentrancetothebuildingsays“Thepets_____________!”
__________ofthelandinthatdistrict__________coveredwithtreesandgrass.
