《美国国家健康访问调查》的结果显示，在2008年下半年，超过20%的美国家庭只使用无线业务。

In the second half of 2008, more than 20% of U.S. households had only wireless service, according to a National Health Interview Survey.

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通过文献资料、问卷调查、访问调查等方法对我国职业排球俱乐部的教练员情况进行了调查分析。

By means of literature data, questionnaire and coaches interview, the authors surveyed and analyzed the conditions of the coaches from the professional volleyball clubs in China.

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天野之弥说，他已经向国际原子能机构理事会报告了他的伊朗之行，包括访问调查重点之一的帕尔钦军事地点。

Yukiya Amano said he reported to the IAEA's board about his trip to Iran that included visiting the Parchin military site that has been a key focus of the investigation.

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