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有很多种办法可以使用户在任何地方都能获取想要的数据,并且办法还会越来越多。无线电波与铜线或光纤电缆内的信号相比较,会在更大程度
There are many ways to get users anywhere they want to get the data, and ways will be more and more. Radio waves and copper or fiber optic cable signal compared to a greater extent