用Mp3背六级单词015

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VOA慢速英语2013 Lucky Livestock Go to Maryland Animal Sanctuary

Lucky Livestock Go to Maryland Animal Sanctuary Welcome to American Mosaic from VOA Learning English. Im Kelly Jean Kelly. On the show today, we play music on a new album from Sean Kingston. We also answer a question about casinos in the United State

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Meat for Mecca: Somaliland Exports Livestock for the Hajj BERBERA, SOMALILAND Every year, the breakaway republic of Somaliland, in east Africa, exports millions of livestock to Saudi Arabia to feed the millions of Muslim faithful making the pilgrimag

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This is scientific American's science 60 second science, I am steve mosbyA lot of people have had compacted third molars. Third molars produce chronic pain. Allen man, a Princeton University Physical anthopolegist, the annual meeting of the immagrate

美国科学60秒 SSS 2013-02-18

A lot of people have had impacted third molars. Third molars produce a lot of chronic pain. Alan Mann, a Prinston University physical anthropologist at the annual meeting of the American Association for the Advancement of Science in Boston on Februar

VOA慢速英语2018 科学家首次在实验室培育出完全成熟的人类卵子

Scientists Grow First Fully Developed Human Eggs in Laboratory For the first time ever, scientists have succeeded in growing human eggs from the earliest stages to full maturity in a laboratory. 科学家们有史以来首次在实验室将人类卵子

VOA常速英语2018--科学家试图通过动物粪便来寻找增加繁育量的方法

Researchers are trying to identify the reasons behind the poor population growth of some of Africas wild animals including the Grevy and Cape Mountain zebras. A major focus is the endangered black rhino. What weve done with the University of Manchest

SSS 2009-03-18

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Seventy percent of all antibiotics in this country go to livestock like pigs and chickens. And concern is growing about drug-resistant bacteria that sp

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Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗？ An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells

VOA慢速英语 2007 0612b

VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. On our program this week, we will tell about an animal that can reproduce without mating. We also will tell about a Swedish man who d

2007年VOA标准英语-Europe to Lift British Livestock and Meat Ban W

By Tom Rivers London 23 August 2007 Vigilance and early containment of foot and mouth disease in Britain have paid off as European vets agree to lift the export ban on British meat and livestock. For VOA, Tom Rivers in London has details. A ruptured

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Animals in many large livestock-raising operations around the world get a small but steady dose of certain antibiotics in their feed. U.S. health officials say there is unequivocal evidence of a link between overuse of antibiotics in healthy livestoc

VOA标准英语2010年-Use of Antibiotics in Livestock Debate

Animals in many large livestock-raising operations around the world get a small but steady dose of certain antibiotics in their feed. Doctors around the world are finding it harder and harder to cure some infections. Bacteria are developing resistanc

VOA标准英语2010年-Kenyan Boarding School Provides Hope f

Joseph Shiroko, founder of Brian Resource Center, communicates with a student in sign language In Kenya, educational and career opportunities are almost non-existent for people born with multiple physical challenges. They face many forms of discrimin

VOA标准英语2010年-Lost Livestock Mean Lost Livelihoods i

We have limited funds, so we have to make a choice whether we feed people or we feed livestock In addition to lost crops and possessions, many survivors of Pakistan's floods lost their livestock. Surviving farm animals urgently need food and medical

分类词汇：知识产权 2

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本期真题 1. Nancy is only a sort of ______ of her husband's opinion and has no ideas of her own. A) sample B) reproduction C) shadow D) echo 2. Now that spring is here, you can ______ these fur co

2006年VOA标准英语-Is It Still Art If It's a Reproduction?

By Stephanie Ho Washington 08 January 2006 The inaugural exhibit at the new Loyola University Museum of Art in Chicago is raising questions about art and the value of copies of art. The show features

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Science and technology 科学技术 Human reproduction 人类繁衍 Life begins at 45 45岁也能生娃 Hope for older mothers 高龄母亲的福音 WHEN it comes to reproduction, men have it easy. 讲到繁衍，男人表示压力很小。 Almost to

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Although snails can and do successfully mate without stabbing each other, studies have shown that darted snails store one-hundred-sixteen percent more sperm than undarted snails.