问题
单项选择题
下列关于MESH网说法错误的是（）。
A.Mesh网具有灵活、易扩展的特点
B.与传统SDH组网方式相比，Mesh网不需要预留50％的带宽，在带宽需求日益增长的情况下，节约了宝贵的带宽资源
C.Mesh网可提供多条保护路径，提高了网络的安全性，最大程度上利用整个网络资源
D.Mesh网的具体保护方式不包括1+1路径保护
答案
参考答案：D
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下列关于MESH网说法错误的是（）。
A.Mesh网具有灵活、易扩展的特点
B.与传统SDH组网方式相比，Mesh网不需要预留50％的带宽，在带宽需求日益增长的情况下，节约了宝贵的带宽资源
C.Mesh网可提供多条保护路径，提高了网络的安全性，最大程度上利用整个网络资源
D.Mesh网的具体保护方式不包括1+1路径保护
参考答案：D
阅读短文，根据短文内容填写表格，将信息补充完整。每空限填1个单词。并在答题卡上将答案填写在对应题号的横线上。 Katie Spotz is a 22-year-old girl from America. She wants to cross the Atlantic Ocean by boat. If she succeeds, she‟ll be the youngest and the first American to finish the 2500-mile trip. Spotz began sailing when she was at university, but she has never tried to sail such a long way before. It will be a great challenge for her. In recent years, she has swum all the way down the 325-mile Allegheny River and traveled by bike form Seattle to Washington. Spotz knows that she may see some dangerous things during the trip. It will be very dangerous if she meets very bad weather in the middle of the sea. But she believes that she can deal with all the difficulties. “I never thought I could run 26 miles,” she said. “But once I finished it, I realized that maybe I could do something even more difficult.” Spotz wants to collect money by going on this trip. She wants to collect money for an organization called “Blue Planet Run”. The organization offers free, safe drinking water to people who need it. It will take her about three months to finish this trip. Good luck to this brave girl and best wishes to her!
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