单词:cryptochetum (cryptochetum) grandicorne
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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
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
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
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
EXPLORATIONS - 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 Na
Human quirks also play a role. 人类的怪癖也起到一定的作用。 Robert Shiller, who helped create the subfield now known as behavioural finance (and won a Nobel prize), reckons that ideas about markets spread like an epidemic. 曾为如今以