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Paul Rothemund:DNA魔法

Paul Rothemund正在编写一种特殊的「密码」以使DNA能自己排列成星形、笑脸及其他图案。您会为之感到震惊，但您所看到的只是分子自我排列组合的小型表演，它实际上揭示了未来制造出各种东西

发表于:2018-12-09 / 阅读(54) / 评论(0)

TED公开课:头脑游戏

VOA标准英语2011--Libyan Rebels Move on Gadhafi's Hometown

Libyan opposition forces are fighting for control of Sirte, the hometown of their avowed enemy, Libyan leader Moammar Gadhafi. The rebels have taken swift advantage of a U.N.-backed military campaign that is now under NATO command. Government forces

发表于:2018-12-16 / 阅读(66) / 评论(0)

VOA标准英语2011年(三月)

Gadhafi Says Other Nations Should Follow Libya's Example

Roger Wilkison Libyan leader Moammar Gadhafi has hailed his first visit to Europe in 15 years as historic and followed up his renunciation of weapons of mass destruction with a pledge to work for worl

发表于:2019-01-04 / 阅读(75) / 评论(0)

VOA2004（上）--各类新闻

voa标准英语2008年-Gadhafi's Son Meets Senior US Officials

A son of Libyan leader Moammar Gadhafi met senior Bush administration officials Tuesday in another sign of improved U.S.-Libyan relations. Saif al-Islam Gadhafi sees Secretary of State Condoleezza Rice Thursday. VOA's David Gollust reports from the

发表于:2019-01-13 / 阅读(79) / 评论(0)

VOA标准英语2008年(十一月)

VOA标准英语2009-Libya's Gadhafi Lashes Out at US

Libyan leader Muammar Gadhafi has lashed out at the United States by likening the 1986 U.S. Strikes on Libya to Osama bin Laden's terror attacks on the United States in 2001. He was speaking Thursday in Rome, where he is on a three-day official visi

发表于:2019-01-13 / 阅读(75) / 评论(0)

VOA标准英语2009年(六月)

VOA常速英语2007年-World Loses Many Well-Known International Figur

By Barry Unger Washington 14 December 2007 The year 2007 saw the passing of many well-known international figures who left a lasting impression. VOA's Barry Unger takes a look back at some of these people. Jim Bertel narrates. Former Russian Presiden

发表于:2019-02-04 / 阅读(56) / 评论(0)

VOA常速英语2007年（十二月）

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学英语单词

accumulational surface

acetate cellulose fibre

azimuth steerable and propulsion unit

bills for collection

binge-vomit syndrome

Bioko, Prov.

bit-by-bit register display