I didn't know ______ about him. [ ]
A. many
B. lots of
C. much
D. some
答案：C
臁疮疮面有较多腐肉，外用药宜选( )
A．生肌玉红膏B．九一丹C．七二丹D．红油膏E．白玉膏
MPLS BGP VPN OSPF超级Backbone实现中，使用以下哪种BGP扩展属性携带OSPF路由类型信息（）。
A.OSPF Domain Identifier Extended Community
B.OSPF Route Type Extended Community
C.OSPF Router ID Extended Community
D.Route Distinguisher
