在下面的网络中(如图所示),Quidway路由器配置命令如下(PC默认网关配置正确): [RouterA]display current-configuration Now create configuration... Current configuration ! version 1.4.1 ! interface Ethernet0 ip address 192.168.1.1 255.255.255.0 ! interface Serial0 clock-select DTECLK3 link-protocol ppp ip address 10.1.1.2 255.255.255.0 ! interface Serial1 link-protocol ppp ip address 10.1.3.1 255.255.255.0 ! quit rip network all ! return [RouterB]display current-configuration Now create configuration... Current configuration ! version 1.4.1 ! interface Ethernet0 ip address 192.168.2.1 255.255.255.0 ! interface Serial0 link-protocol ppp ip address 10.1.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp ip address 10.1.2.1 255.255.255.0 ! quit rip network all ! return [RouterC]display current-configuration Now create configuration... Current configuration ! version 1.4.1 ! interface Ethernet0 ! interface Serial0 clock-select DTECLK1 link-protocol ppp ip address 10.1.2.2 255.255.255.0 ! interface Serial1 clock-select DTECLK1 link-protocol ppp ip address 10.1.3.2 255.255.255.0 ! quit rip network all ! return 以下说法正确的是:() A. PCA可以ping通PCB; B. PCA不可以ping通PCB; C. RouterA可以ping通RouterC; D. RouterA不可以ping通RouterB