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By Jeffrey Young Washington 17 April 2007 To most Americans, the governments in their towns and regional areas called counties are the governments they interact with the most. And alongside these local governments are groups of citizens who work on
发表于:2019-02-05 / 阅读(99) / 评论(0)
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The 1.5-kilogram drones, made of carbon fiber, are equipped with an infrared cameras, allowing them to see in the dark. They will also be fitted with radar systems and communications antenna to extend monitoring capabilities. But the truly outstandin
发表于:2019-02-14 / 阅读(101) / 评论(0)
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