可以使用下列哪条命令获得cd的帮助信息查看命令cd的绝对路径,结果如下:whichcd换行/usr/bin/which:nocdin换行（/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin）（）

A . display ospf lsdb network B . display ip ospf lsdb network C . display ospf lsdb router D . display ip ospf lsdb router

A . A、mkdir-h B . B、manmkdir C . C、helpmkdir D . D、infomkdir

A . /？ B . /h C . /a D . /

A . 正确 B . 错误

A . display iprouting-table B . display iprouting-table vpn-instance vpna C . display bgp vpnv4 all routing D . display bgp vpnv4 all routing vpn-instance vpna

A . pms B . pll C . rssi D . bsp

A . show version B . show running-config C . show hostname D . show cdp neighbor

A . server B . service C . svr D . hel

A . display bgp community B . display bgp routing-tablecommunity C . display bgp peer D . display bgp routing-table peer X.X.X.X received-routes

A . A、/ B . B、~ C . C、用户的主目录 D . D、/tmp

A . display current-configuration B . display saved-configuration C . view saved-configuration D . show startup-configuration

A . display ospf cumulative B . display ospf spf-statistics C . display ospf global-statics D . display ospf request-queue

A . show ip route B . show controllers C . show cdp neighbor D . show ar

A . A、display device B . B、display rxtxmemslot

A . A、show flash： B . B、show ios C . C、show version D . D、show config

A . disp_site B . disp_act<site> C . disp_cell_s<site#> D . state<site#>

A . A.cd B . B.ls C . C.man D . D.gzip

A . display mpls lsp B . display mpls ldp session C . display mpls ldp peer D . display mpls ldp l

A . mesg-d B . dmesg C . cat/etc/mesg D . cat/var/mesg

A．isplay cpu-state B．isplay interface C．isplay memory D．isplay cpu-usage 此题为多项选择题。