【判断题】当前,我国社会中最大的发展不平衡是城乡发展不平衡;最大的发展不充分,是城市发展不充分。
【单选题】下图中各主机和路由器各接口的 MAC 地址和所配置的 IP 地址都已标注在它们的旁边,假设主机 H1 要给 H2 发送一个 IP 数据报,该 IP 数据报会被封装成以太网帧进行发送,则当 H2 收到该帧时,其首部中的源 MAC 地址以及所封装的 IP 数据报首部中的源 IP 地址分别是
A.
00-a1-b2-c3-d4-61 192.168.1.254
B.
00-a1-b2-c3-d4-61 192.168.0.1
C.
00-1a-2b-3c-4d-51 192.168.0.1
D.
00-1a-2b-3c-4d-51 192.168.1.254
【判断题】--- What time will the next train leave? --- At 8.19.()
【单选题】路由器R通过以太网交换机S1和S2连接两个网络,R的接口、主机H1和H2的IP地址与MAC地址如下图所示。若H1向H2发送一个IP分组P,则H1发出的封装P的以太网帧的目的MAC地址和H2收到的封装P的以太网帧的源MAC地址分别是( )
A.
00-a1-b2-c3-d4-62、00-1a-2b-3c-4d-52
B.
00-1a-2b-3c-4d-51、00-1a-2b-3c-4d-52
C.
00-a1-b2-c3-d4-62、00-1a-2b-3c-4d-61
D.
00-1a-2b-3c-4d-51、00-a1-b2-c3-d4-61
【单选题】What is a train?
A.
A train is carrying people or goods from one place to another.
B.
A train use freight cars to transport goods or cargo.
C.
A train is passenger-carrying vehicles that can often be very long and fast.
D.
A train is a form of rail transportation consisting of a series of vehicles that usually runs along a rail track to transport cargo or passengers
【简答题】11-PowerPoint基本操作.rar
【单选题】听力原文:The snowstorm brought train travel to a standstill. What happened to train travel?
A.
Trains were stuck in the snow.
B.
People couldn't get train tickets.
C.
Many people had to stand on the train.
D.
Train travel was suspended because of severe snowstorm.