IEEE802.3最新版本(原版)就最后Section5给1分就好,谢谢^_^下了一定要看哟(RevisionofIEEEStd802.3-2005)SectionTwo—IncludesClause21throughClause33andAnnex22AthroughAnnex33E.SectionTwoincludesmanagementattributesformultipleprotocolsandspeedofoperationaswellasspecificationsforprovidingpowerovertwistedpaircablingformult