Tracking President Donald Trump's campaign promises: The Trump-O-Meter is PolitiFact's meter for tracking 100 promises President Trump made during his 2016 campaign. (We tracked President Barack ...

Electricity Distribution Companies (DisCos) in Nigeria have announced revised prices for various electricity meter models, marking the second price hike in four months. According to DisCos, the cost ...

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加密货币是一种数字形态的货币。他们属于数字资产，可用于购买商品和服务。加密货币也可储存价值、记账和作为交换中介。分布式账本(又称“区块链”)保障了这种数字资产的安全。第一个加密货币是比特币，中本聪(假名)创造了这种加密货币，并在2009年 ...