【答案】:D 29、BGP runs over a reliable transport (请作答此空). This eliminates the need to implement explicit update fragmentation, retransmission, acknowledgement, and ( ). Any authentication scheme used by the transport protocol may be used in addition to BGP's own ( )mechanisms. The error notification mechanism used in BGP ( )that the transport protocol supports a “graceful” close, ., that all outstanding data will be delivered ( )the connection is closed.
【答案】:A 30、要使Word 能自动提醒英文单词的拼写是否正确,应设置 Word 的( )选项功能。