票据上有伪造，变造的签章的，将影响到票据上其他真实的签章的效力。
铅酸蓄电池充电过程中，电解液的密度是（）的。 不断提高。 不断降低。 不变。 急剧变化。
Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（） presentation。 session。 transport。 network。 physical。
杂基
Which two statements about the bgp deterministic-med and bgp always-compare-med commands are true？（） The bgp deterministic-med command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path length。 The bgp always-compare command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path system。 Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system.。 Enabling the bgp always-compare-med command ensures the comparison of the MED variable for paths from neighbors in different autonomous systems.。 The bgp deterministic-med and bgp always-compare-med commands are enabled by defult.。
OSPF路由协议在多路访问的网络中，需要选择DR和BDR，那么其在那种状态进行了DR和BDR的选举？（）
