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Cryptocurrency Traders Use Old Gold to Interest Islamic Investors

Dubai is the top center for gold trade in the Middle East. In Dubais old gold market, buyers from around the world argue over prices for jewelry. But in other parts of the United Arab Emirates (UAE), the metal is becoming important in financial engin

发表于:2018-12-08 / 阅读(37) / 评论(0)

2018年VOA慢速英语(四)月

Kary Mullis:谈科学家怎么做科研

生化学家 Kary Mullis 和大家谈现代科学的基础：实验科学。通过分享十七世纪的故事和他小时候在后院玩火箭的个人经历，Mullis分享了各行业科学研究所共有的不断求知的好奇心和热情，以及科

发表于:2018-12-09 / 阅读(43) / 评论(0)

TED公开课:头脑游戏

VOA慢速英语-EXPLORATIONS - National Cryptologic Museum Is Filled

VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we visit a small museum in the state of Maryland. It is called the National Cryptologic Museum. It is filled with informat

发表于:2018-12-15 / 阅读(50) / 评论(0)

VOA慢速英语2008年（九）月

EXPLORATIONS - National Cryptologic Museum

EXPLORATIONS - September 18, 2002: National Cryptologic Museum By Paul Thompson German Nazi, American and Japanese coding machines. (Photo - Ed Bunyan) VOICE ONE: This is Mary Tillotson. VOICE TWO: An

发表于:2019-01-02 / 阅读(70) / 评论(0)

Explorations

Using Cats to Explain Cryptocurrency and Blockchain

By now, most people have heard of bitcoin. Bitcoin is a virtual currency that has had a huge rise in value during 2017. Bitcoin however is just one of many cryptocurrencies. A cryptocurrency is a kind of money that does not exist in the form of bills

发表于:2019-01-03 / 阅读(54) / 评论(0)

2018年VOA慢速英语(一)月

VOA慢速英语2013 A Visit to America’s National Cryptologic Museum

A Visit to Americas National Cryptologic Museum From VOA Learning English, this is EXPLORATIONS in Special English. Im Jeri Watson. And Im Jim Tedder. Today we visit a small museum in the American state of Maryland. It is called the National Cryptolo

发表于:2019-01-12 / 阅读(62) / 评论(0)

2013年VOA慢速英语(五)月

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anion permselective membrane