2. 外语
  3. Because short messaging service is a kind of data communication, second generation wireless cannot support it. The networks of

Because short messaging service is a kind of data communication, second generation wireless cannot support it. The networks of

admin2013-06-02  68
问题 Because short messaging service is a kind of data communication, second generation wireless cannot support it.
The networks of communication system which are peer-to-peer are one property of 4G wireless communication.
选项
答案Y。
解析 由题干中的4G和peer-to-peer定位到第一个小标题下第三段第三句Although experts and policymakers... end-to-end Internet Protocol (IP), and peer-to-peer networking．题干中的property与原文中的characteristics是同义词；由于two characteristics包含了peer-to-peer networking，故题目与原文表述一致。
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