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【单选题】
在一台主机上用浏览器无法访问域名为www.tjnm.edu.cn的网站, 并且在这台主机上执行tracert命令如下信息 Tracing route to www. tjnu.edu.cn [202.113. 16.10] over amaximun of 30 hops: 1 <1ms <1ms <1ms 202.113.64.129 2 202.113. 64.129 reports:Destination net unreachable Trace complete 分析以上信息,会造成这种现象的原因是
A.
相关路由器上进行了访问控制
B.
服务器www.tjnu.edu.cn工作不正常
C.
该计算机IP地址设置有误
D.
该计算机设置的DNS服务器工作不正常
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