[医] 黑色素原杆菌, 产黑色素嗜血杆菌

SSS 2012-05-28

This is scientific American's 60 seconds science. I'm Sophie Bushwick, got a minute. Tens of millions of years ago, cephalopods were hiding from enemies in clouds of ink. And it turns out thatcuttlefish today producing ink that's almost identical. Re

发表于:2018-12-24 / 阅读(78) / 评论(0)

Scientific American(五)月

SSS 2012-05-25

This is scientific Americans 60 second science, I am Sophie Bushwick. got a minute. Tens of millions of years ago, cephalopods were hiding from their enemies in clouds of ink. And it turns out that cuttlefish today produce ink thats almost identical.

发表于:2018-12-24 / 阅读(78) / 评论(0)

Scientific American(五)月

托福听力短文 II-01-2

(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex

发表于:2018-12-30 / 阅读(96) / 评论(0)

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经济学家Eleni Gabre-Madhin概述了她将在埃塞俄比亚建立第一个商品市场的雄心愿景。她的计划将会创造财富，把农民的风险降到最低，并把世界最大的食品援助接受国转变成一个地区性的食品篮

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英语口语大赢家Topic228:中国民俗 Chinese Folk Customs

民俗在发展如此迅速的中国经历着困难时期。随着来自国外的新观念和新想法的涌入，许多人担心这些民俗会消失。 Listen Read Learn Folk customs have a difficult time in China that is undergoing such rapid development. Many fear that these customs will disappe

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英语口语大赢家

食品方面的词汇

A acceptable daily intake (ADI) 每人每日容许摄入量 acclimatization 气候适应 accumulate 蓄积 acetylandromedol 乙酰柽木醇毒 acceptable risk level 可接受的危险水平 acid-forming food 成酸性食品 Achromobacterium 无色菌属 Act for preventing the adulterati

发表于:2019-01-08 / 阅读(211) / 评论(0)

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英语听力：自然百科为何婴儿大多拥有蓝色眼睛？

Hi, its Kasey-Dee Gardner for Why? Tell Me Why? This week we received a question about baby eye color. The question was why are most babies born with blue eyes?. And I wasnt sure that was a true statement, but it is in fact a true statement. Actually

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This all black feathered king penguin could be one in a zillion. The video was recorded on a sub-Antarctic island of South Georgia by National Geographic Traveler magazine contributing editor Andrew Evans on his bus to Antarctic expedition. While man

发表于:2019-01-22 / 阅读(87) / 评论(0)

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Illinois Senator Barack Obama and former Arkansas Governor Mike Huckabee have won the Iowa caucuses held in that Midwestern state on Thursday. Obama, who won the most votes in the Democratic Party caucuses, is the first person of African descent to h

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Sao Paulo announces return of Denilson

RIO DE JANEIRO, July 19 (Xinhua) -- The Sao Paulo soccer team proudly presented Denilson on Tuesday. Denilson, who left Sao Paulo in 2005 at the age of 18 to play for England's Arsenal, claimed that he was unsatisfied at Arsenal and with head coach A

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Senior Chinese official urges more efforts to transform economy

BEIJING, July 20 (Xinhua) -- A senior Chinese official has urged local governments to make more efforts to transform the economic development pattern and maintain steady economic growth. He Guoqiang, a member of the Standing Committee of the Politica

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Senior leader launches high-end automobile production base

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Senior leader stresses innovations in aerospace science

BEIJING, June 8 (Xinhua) -- Senior Chinese leader Jia Qinglin has urged the country's aerospace science workers to strive for more breakthroughs in core technologies by taking an independent innovative approach. Jia, a member of the Standing Committe

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英语听力文摘 English Digest 151、当头发变白

Your teenage son wrecks the car. Your daughter shows up with her recently paroled boyfriend. These are the sorts of things that can make your hair turn gray overnight. Actually, it's impossible for hair to completely change color overnight. Hair colo

发表于:2019-02-16 / 阅读(97) / 评论(0)

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Senior official urges improvements in political consultative system

BEIJING, Aug. 22 (Xinhua) -- A senior official of the Communist Party of China (CPC) has urged local political consultative organizations to promote their successful experiences and use them in their daily work. Wang Gang, vice chairman of the Nation

发表于:2019-02-17 / 阅读(107) / 评论(0)

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Senior leader urges to boost red tourism

NANCHANG, Feb. 28 (Xinhua) -- Senior Chinese official Li Changchun has called for efforts to boost tourism in the country's sites of revolutionary history. Li, a member of the Standing Committee of the Political Bureau of the Communist Party of China

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Senior Chinese leader urges healthy online culture

BEIJING, Jan. 4 (Xinhua) -- Senior Chinese leader Li Changchun on Wednesday called for more efforts to strengthen the Internet construction and management and promote a healthy online culture. Li, a member of the Standing Committee of the Political B

发表于:2019-02-18 / 阅读(171) / 评论(0)

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VOA慢速英语--Nigerian Women Fight Skin-Lightning Movement

Many women around the world use skin-lightening beauty products in an effort to improve their looks. The World Health Organization, or WHO, reports that the country with the highest percentage of women using such products is Nigeria. In its 2011 repo

发表于:2019-02-25 / 阅读(119) / 评论(0)

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剑桥雅思报考指南(MP3+字幕) 第32期:OG09 Recording 34

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