霍乱最主要的传播形式是通过()
A.水
B.生活接触
C.食物
D.苍蝇媒介
E.以上都不是
参考答案:A
It is the second time I ______ to be monitor.
A. has been chosenB. had been chosenC. was chosenD. chose
根据网络拓扑和需求说明,完成(或解释)路由器R1的配置。 Router(config)#ipv6 unicast-routing (3) R1(config)#intefface Serial 1/0 Rl(config-if)# (4) address (5) (6) (设置串口地址) R1(config-if)#no shutdown (开启串口) R1(config)#interface FastEthernet0/0 R1(config-if)# (7) address (8) (设置以太口地址) R1(config-if)#exit