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Scientists Create Method to Test Food and Drugs for Purity Millions of people in developing countries have to be on guard against contaminated food and medicine. Some products could be harmful -- even deadly. In Nigeria, brake fluid was found in a pr

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VOA常速英语2015--手机应用帮助肯尼亚公司领先于假货商人

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AU Access Unit 访问单元 电信英语及其缩略语解释（3） AU Adaptation Unit 适配单元 AU Administrative Unit 管理单元 AUC AUthentication Center 验证中心 audioconference 电话会议

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APCM Adaptive Pulse Code Modulation 自适应脉码调制 APCM是在PCM基础上，采用量化自适应，使均方量化误差最小的一种调制方法。 APD Avalanche Photo Diode 雪崩光电二极

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For the last two years, all train tickets in China have had to include the real name of the passenger to prevent scalping. But the system clearly isnt working. Numerous pictures have been posted on the internet, showing railway tickets stamped with n

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RACHEL MARTIN, HOST: Top executives from Facebook and Twitter are here in town today with some important meetings. They're going before House and Senate committees on Capitol Hill, and they will be grilled again about what social media companies coul

TED演讲:区块链对货币和商业的影响(2)

So today, we rely entirely on big intermediaries -- middlemen like banks, government, 如今，我们完全依赖于大型中介机构，中间商比如银行，政府， big social media companies, credit card companies and so on to establish trust

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What did you get? 你发现了什么 I think your friend's bodyguard gave him the wrong security fob. 我觉得你朋友的保镖给了他错的安全卡 Why is that? 这怎么说 Well, once I got past Blackhawk's authentication system, there wasn't

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Q. For me, one hindrance to using social media and trying new things online is having to remember the various usernames and passwords. Do you have any advice on simplifying or codifying this process? 问：我使用社交媒体、在网上尝试新事物

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Fans of the late Princess Diana have expressed their disgust after a lock of hair said to be from the much-loved royal has been put up for sale on Amazon. 一绺已故的戴安娜王妃的头发被放上亚马逊出售，这位倍受敬爱的皇室成员

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Customers who want to continue using payment services via Alipay and WeChat have to authenticate themselves with real names before July 1, otherwise the payment services will be unavailable, Chongqing Evening News reported. 根据《重庆晚报》报道

英语听力精选进阶版 6451

People who want you to part with your cash and property can steal your passwords and personal details, but what about your voice? That's what some big companies asked themselves before turning their attention to voice biometrics in their war against

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Topic1 How to Avoid Being Duped in Broken Vase ScamsPeople in China who attempt to profit through Peng Ci, or extorting money from a driver through creating a traffic accident, may now find the practice more difficult. A court in the eastern city of

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Estonian Government Aims to End Paperwork Three-day-old Oskar Lunde sleeps in a small bed at an Estonian hospital. Across the room, his father turns on a laptop computer. Now we will register our child, Andrejs Lunde says, as he lifts his identificat