亚甲二膦酸盐

EXPLORATIONS - In an Age of Modern Science and Medicine, Inf

EXPLORATIONS - In an Age of Modern Science and Medicine, Infectious Diseases Remain the World's Leading Killer By Jill Moss Broadcast: Wednesday, September 21, 2005 (MUSIC) VOICE ONE: I'm Faith Lapidu

发表于:2018-12-01 / 阅读(559) / 评论(0)

Explorations

VOA标准英语2012--Medany Aims to be 1st Egyptian Woman to Medal at Olympics

Medany Aims to be 1st Egyptian Woman to Medal at Olympics As Egypt struggles to get back on its feet after 16 rocky months of revolution and military rule, the country's young Olympians are hoping to do the seemingly impossible under the circumstance

发表于:2018-12-16 / 阅读(240) / 评论(0)

VOA标准英语2012年(七月)

哈利波特与魔法石18-Harry meets Ron Weasley

发表于:2018-12-31 / 阅读(377) / 评论(0)

哈利波特与魔法石

简单慢速英语阅读:Sharon Goes Shopping

Sharon went to Target with Paula. Target was having a sale. Everything was on sale. It was the holiday season. It was the day after Thanksgiving. It was Black Friday. Did someone die? Paula asked her mom. Her mom said no. Then why do they call it Bla

发表于:2019-01-02 / 阅读(227) / 评论(0)

简单慢速英语阅读

EVER GREEN -GLENN MEDEROS

Love soft as an easy chair love fresh as the morning air one love that is shared by two i have found with you like a rose under the april snow i was always certain love would grow love ageless and evergreen seldom seen by two you and i will make eac

发表于:2019-01-03 / 阅读(272) / 评论(0)

珍藏经典老歌

TED公开课:百字不如一数字 03 非洲的分形结构——Ron Eglash

我是一名数学家，并且我希望站在你们的屋顶上。当Ron Eglash遇到许多非洲家庭时，他总是这样介绍。当时，他正在研究非洲的村落中随处可见的分形图案。

发表于:2019-01-05 / 阅读(305) / 评论(0)

TED公开课:百字不如一数字

2006年VOA标准英语-UNHCR Alarmed at Sudanese Rebel Infiltration in

By Lisa Schlein Geneva 26 May 2006 Sudanese refugee children sit in their makeshift classroom, Wednesday, April 19, 2006 in the refugee camp Kou Kou Angarana in Chad some 30 kilometers from the Sudan border The U.N. refugee agency says it is very di

发表于:2019-01-09 / 阅读(307) / 评论(0)

2006年VOA标准英语（五月）

VOA常速英语2008年-Russian Presidential Candidate Medvedev Not a P

By Anya Ardayeva Moscow 28 February 2008 Russians are preparing to go to the polls Sunday to elect their next president. But out of four candidates competing for the post, Kremlin-backed Deputy Prime Minister Dmitry Medvedev is the overwhelming favor

发表于:2019-01-11 / 阅读(218) / 评论(0)

VOA常速英语2008年（二月）

2006年VOA标准英语-Pronk Expulsion Creates Rift in Sudanese Govern

By Noel King Khartoum 24 October 2006 Jan Pronk Sudan's decision to expel United Nations envoy Jan Pronk has created a rift within the government. Former southern and Darfuri rebels - now part of Sudan's unity government - say they do not agree with

发表于:2019-01-12 / 阅读(302) / 评论(0)

2006年VOA标准英语（十月）

VOA标准英语2011--Mini Med School Draws the Curious

Mini Med School Draws the Curious Becoming a doctor takes many years of training and tens of thousands of dollars in tuition. But anyone can get a taste of medical training, from real medical school professors, in just two months, for free, at a mini

发表于:2019-01-14 / 阅读(277) / 评论(0)

VOA标准英语2011年(十月)

VOA标准英语2009年-Wildfires Plague Southern Europe, Mediterr

Summer wildfires continue to rage across forests on the Mediterranean islands of Corsica and Sardinia. Spain and Greece are also dealing with blazes. Italian and French authorities have detained a number of people suspected of starting the forest fi

发表于:2019-01-14 / 阅读(301) / 评论(0)

VOA标准英语2009年(七月)

60秒科学:Pharaohs Had Heart Disease

Darwin in Battle of Wits against Unarmed Man Antievolutionist Ray Comfort will be distributing copies of the Origin of Species with a new introduction that misrepresents, misunderstands and distorts Darwin's ideas and legacy. Steve Mirsky comments No

发表于:2019-01-30 / 阅读(314) / 评论(0)

60秒科学

60秒科学:Darwin in Battle of Wits against Unarmed Man

发表于:2019-01-30 / 阅读(391) / 评论(0)

60秒科学

VOA慢速英语2010年-Health Report - Needle Injuries to Med

This is the VOA Special English Health Report. For medical students, real experience begins not in a classroom but at a teaching hospital. These doctors in training are supervised. But sometimes accidents happen and the students get injured. For exam

发表于:2019-01-31 / 阅读(315) / 评论(0)

2010年慢速英语(二)月

2006年VOA标准英语-Situation in Iraq Deemed Grave and Deterioratin

By Peter Fedynsky Washington, D.C. 06 December 2006 watch Bipartisan report The bipartisan Iraq Study Group has issued its long-awaited series of strategic recommendations on ways to stabilize the situation in Iraq. As VOA's Peter Fedynsky reports,

发表于:2019-01-31 / 阅读(294) / 评论(0)

2006年VOA标准英语（十二月）

英文歌曲:庆祝湖人夺冠新单_Ron Artest - Champions

Champions [verse 1] moment of silence for the champions for those who make going hard a lifestyle never wait for nothing got to get it right now i'm in the spotlight when they turn the lights down only the champs go the hardest in the 12th round i lo

发表于:2019-02-03 / 阅读(234) / 评论(0)

好听的英文歌曲

英语歌曲:庆祝湖人夺冠新单Ron Artest - Champions

庆祝湖人夺冠新单：Ron Artest - Champions Artist：Ron Artest Song：Champions [verse 1] moment of silence for the champions for those who make going hard a lifestyle never wait for nothing got to get it right now i'm in the spotlight when th

发表于:2019-02-03 / 阅读(302) / 评论(0)

流行英文歌曲

VOA标准英语2008年-Skepticism Surrounds Senegalese President's Med

By Nico Colombant Dakar 10 June 2008 Senegalese President Abdoulaye Wade met with envoys from the Islamist group Hamas and the more secular Palestinian movement Fatah in an attempt to lay the groundwork for eventual peace with Israel. But at least o

发表于:2019-02-07 / 阅读(234) / 评论(0)

VOA标准英语2008年（六月）

VOA标准英语2009年-Obama Arrives in Moscow for Talks With Med

U.S. President Barack Obama has arrived in Moscow for talks with Russian leaders, expected to focus largely on arms control. President Barack Obama (R), his daughters Malia (2R), and Sasha and his wife Michelle Obama are seen on their arrival at Mos

发表于:2019-02-12 / 阅读(250) / 评论(0)

VOA标准英语2009年(七月)

Veron to play in Argentina's fifth division

BUENOS AIRES, Dec. 7 (Xinhua) -- Former Manchester United and Argentina midfielder Juan Sebastian Veron has confirmed he will play in Argentina's fifth division next year. The 37-year-old ended his career with top-flight side Estudiantes in June but

发表于:2019-02-13 / 阅读(397) / 评论(0)

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average rate of filtering

catastrophic speciation