四乙基铅

turn around to see you in a crowded place i watch for the emotions on a guarded face saying lead me on victim of a dream and a memory but when i try to break free you say to me c'mon lead me on a matt

发表于:2018-11-29 / 阅读(221) / 评论(0) 分类 英语歌曲第九辑

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(175) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(127) / 评论(0) 分类 VOA双语新闻 2014年1月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(153) / 评论(0) 分类 Scientific American(一)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(138) / 评论(0) 分类 医务英语

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(126) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(103) / 评论(0) 分类 白领英语晨读

听歌学英语:Love Will Lead You Back 歌词: saying good bye is never an easy thing but you never said you'd stay forever so if you must go darling i'll set you free but in time i know we will be together i won't try to stop you from leaving 'coz

发表于:2019-02-02 / 阅读(136) / 评论(0) 分类 听歌学英语

BEIJING, May 24 (Xinhuanet) -- CT scan, a widely used heart-imaging test, is likely to result in the over treatment for patients with heart disease, according to a study published online by the Archives of Internal Medicine on Monday. CT, which produ

发表于:2019-02-06 / 阅读(115) / 评论(0) 分类 英语新闻

By Jim Malone Washington 02 April 2008 A new public opinion poll shows Democrat Hillary Clinton's lead over rival Barack Obama in Pennsylvania is down slightly as both contenders campaign in advance of the primary there on April 22. VOA National corr

发表于:2019-02-08 / 阅读(144) / 评论(0) 分类 VOA常速英语2008年(四月)

NEW YORK, March 6 (Xinhua) -- Kobe Bryant finished with 42 points and 12 assists to help the Lakers make up 25-point deficit in the second half and beat the Hornets 108-102 Wednesday at New Orleans. Kobe, who injured his right elbow in a loss at Okla

发表于:2019-02-13 / 阅读(106) / 评论(0) 分类 英语新闻

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(126) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(140) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(139) / 评论(0) 分类 万物简史

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(165) / 评论(0) 分类 万物简史

KAMPALA, July 12 (Xinhua) -- Uganda's Vice President Edward Ssekandi will lead the country's delegation to the 2012 London Olympics as a way of morale boosting the team to win medals. Dennis Galabuzi, the Uganda Olympic Committee (UOC) vice president

发表于:2019-02-17 / 阅读(115) / 评论(0) 分类 英语新闻

BEIJING, March 25 (Xinhuanet) -- Zhou Dongyu, the starlet in Zhang Yimou's drama Under the Hawthorn Tree, has been cast as a lead for Stanley Kwan's upcoming romantic film, Ta De Guo (His Kingdom), according to the Guangzhou Daily. The newspaper cite

发表于:2019-02-19 / 阅读(341) / 评论(0) 分类 英语新闻

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(155) / 评论(0) 分类 TED演讲教育篇

MADRID, March 4 (Xinhua) -- Real Madrid retain their 10 point lead at the top of the BBVA Primera Liga after the 25th round of matches thanks to a comfortable 5-0 win at home to Espanyol on Sunday. Espanyol have traditionally been easy victims for Ma

发表于:2019-02-25 / 阅读(165) / 评论(0) 分类 英语新闻

Voice 1 Welcome to Spotlight. I'm Joshua Leo. Voice 2 And I'm Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 It was a medical mystery. In sever

发表于:2019-03-15 / 阅读(287) / 评论(0) 分类 环球英语 Spotlight
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