Wireless service plans vary in options as well as cost.

各种无线服务计划有各种不同的选项和成本。

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Users do not even have to have a wireless service contract.

用户甚至不需要签订无线网络服务合同。

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Verizon: in 2009, Verizon tested its 4g wireless service in Boston and Seattle.

威瑞森：2009年，威瑞森公司在波士顿和西雅图测试了它的4g无线服务。

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Expanding service to some areas of the country will require wireless transmission.

VOA: special.2010.03.19

Texas Instruments floats an idea for combining three types of wireless service into a single device.

FORBES: Magazine Article

Beauchamp's petition urges Verizon to follow T-Mobile's lead and get rid of contracts for wireless service.

CNN: Brandon Griggs,

Walt contends Verizon LTE is dramatically faster than any other wireless service right now.

FORBES: D9: AT&T Mobility CEO De La Vega Defends The T-Mobile Deal