Which two statements are correct with regard to route distinguisher as defined in RFC 4364-AKA IP-VPN(MPLS-VPN)?()
A. The configuration to define Route-Distinguisher is Ip vrf bulle Rd 1:1
B. A route distinguisher can be imported and exported to and from a VRF
C. Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path algorithm.
D. Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.
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煤粉气流的着火温度随着煤粉粒度变细而增大。这是因为煤粉粒子尺寸的减小可以增加燃烧反应的相对表面积,减少煤粉本身的导热阻力。
A. 正确
B. 错误
干法除尘是指()。
A. 布袋除尘
B. 文氏管除尘
C. 湿法除尘
古希腊城邦中实行奴隶制民主政治的典型代表是()
A. 米利都
B. 斯巴达
C. 雅典
D. 叙拉古