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60秒科学:Why Dwarf Galaxies Lack Star Power

Why Dwarf Galaxies Lack Star Power In a study in the journal Nature, researchers show that the relative lack of star density in dwarf galaxies need not conflict with standard cosmological models if you include the blast effects of supernovae. Karen H

发表于:2019-01-02 / 阅读(45) / 评论(0)

60秒科学

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(74) / 评论(0)

VOA2004（上）--各类新闻

英语新词：试管婴儿的“细胞拍”cellfies

不少准妈妈们都为宝宝做过三维或四维彩超，并给宝宝们拍下人生中的第一张照片。而试管宝宝们如今更可以拥有自己胚胎细胞时期的珍贵影像，这就是细胞拍。 It is the latest trend in baby pictu

发表于:2019-01-08 / 阅读(42) / 评论(0)

英文语法词汇

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

absolute radio magnitude

adiabatic deformation