裂纹扩展阻力

Antimicrobial Drugs in Agriculture

By Mario Ritter Broadcast: August 19, 2003 This is Steve Ember with the VOA Special English Agriculture Report. A study has found no serious effects after farmers in Denmark ended the use of 1)antibio

发表于:2018-12-07 / 阅读(55) / 评论(0)

VOA2003（下）-农业与经济

Very Large Crack Creating Iceberg in Antarctica

Researchers say part of a very large shelf of ice on Antarctica could soon break off and become an iceberg. A team of scientists is closely watching part of the Larsen Ice Shelf, off the coast of northwestern Antarctica. The area is connected to land

发表于:2018-12-07 / 阅读(158) / 评论(0)

2017年VOA慢速英语(一)月

World Action Needed to Prevent Widespread Antibiotic Resistance

World Action Needed to Prevent Widespread Antibiotic Resistance Since the discovery of penicillin in 1928, we have used antibiotics against a host of infections. But now, doctors are finding that more and more bacteria are resistant to even the stron

发表于:2018-12-08 / 阅读(80) / 评论(0)

VOA标准英语2015年(十二月)

流行美语第147课 - To crack somebody up / Fess up

Larry和李华刚刚看完Robin Williams主演的一部新的喜剧片。两人正准备离开戏院。今天李华会学到两个常用语：to crack somebody up和fess up. LL: That was great! Robin

发表于:2018-12-16 / 阅读(90) / 评论(0)

EPT美语第三级（初高中适用）

Step by Step 3000 第1册 Unit12:Dictation item(11)

Item eleven. Vocabulary. migration, resistance, integrated. The World Future Society has published a special report about forces changing the world. One of them is population growth. The report says the world is expected to have more than 9,000 milli

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step by step 3000 第一册

英语儿歌274首第106期:Jimmy crack corn(2)

歌词如下： Jimmy crack corn and I don't care, Jimmy crack corn and I don't care, Jimmy crack corn and I don't care, My master's gone away.

发表于:2018-12-31 / 阅读(105) / 评论(0)

英语儿歌274首

英语儿歌274首第105期:Jimmy crack corn

歌词如下： Jimmy crack corn and I don't care, Jimmy crack corn and I don't care, Jimmy crack corn and I don't care, My master's gone away.

发表于:2018-12-31 / 阅读(102) / 评论(0)

英语儿歌274首

英语歌曲：痞子阿姆09全新单曲 Eminem - Crack a Bottle

阿姆（Eminem）的个人第六张录音室专辑《Relapse》将于今年春季发行，日前，新专辑中的首支单曲现已曝光，名字为《Crack a Bottle》。客串嘉宾50 Cent，制作人Dr. Dre。 Oooh! Ladies and gentlemen, the mo

发表于:2019-01-03 / 阅读(123) / 评论(0)

流行英文歌曲

VOA标准英语2008年-Lord's Resistance Army Warns Against UN-Backed

The spokesman for the Lord's Resistance Army says Congolese forces and U.N. peacekeepers in Congo Kinshasa are preparing to move against the rebel group, which has yet to sign a peace deal to end a 20-year reign-of-terror in the region. VOA Correspo

发表于:2019-01-06 / 阅读(134) / 评论(0)

VOA标准英语2008年（九月）

VOA标准英语2012--Antibiotics Breed Drug Resistance in Pigs

Antibiotics Breed Drug Resistance in Pigs Pigs given low doses of antibiotics had more E. coli in their guts, and that bacteria showed an increased resistance to antibiotics, according to new research. The study confirms the routine practice of feedi

发表于:2019-01-13 / 阅读(78) / 评论(0)

VOA标准英语2012年(一月)

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

发表于:2019-01-13 / 阅读(96) / 评论(0)

VOA标准英语2010年(五)月

VOA标准英语2010年-Antibiotic Resistance Called Growing T

Vidushi Sinha | Washington, DC 18 May 2010 The World Health Organization calls antibiotic resistance one of the three greatest threats to human health. Experts fear antibiotic resistance puts humans in danger of becoming nearly defenseless against so

发表于:2019-01-13 / 阅读(126) / 评论(0)

VOA标准英语2010年(五)月

VOA标准英语2015--Kenya: Misuse of Antibiotics Leading to Resistance by Immune System

Kenya: Misuse of Antibiotics Leading to Resistance by Immune System NAIROBI In Kenya, the rise of drug resistant bacteria could reverse the gains made by medical science over diseases that were once treatable. Kenyans could be at risk of fatalities a

发表于:2019-01-14 / 阅读(104) / 评论(0)

VOA标准英语2015年(一月)

2015年CRI Nobel laureate Tu Youyou Calls for Attention on Artemisinin Resistance

Artemisinin, also known as QingHaoSu in Chinese, was discovered by Chinese scientist Tu Youyou. She received the 2015 Nobel Prize for Physiology and Medicine for the drug's discovery by her team more than three decades ago. In her speech at the Karol

发表于:2019-01-19 / 阅读(143) / 评论(0)

2015CRI中国国际广播电台

每日一词【250】crack down：镇压

今天我们要学的词是crack down。 Crack down, 是镇压的意思，一般是针对非法行为。Police are cracking down on drug dealers, 意思是警方打击毒品贩子。The troops cracked down on insurgents, 意思是军队镇压反叛分子

发表于:2019-02-02 / 阅读(116) / 评论(0)

英语每日一词

VOA标准英语2010年-India Halts Growth of Genetically-Modi

Protesters surround Indian Environment Minister Jairam Ramesh (C) as he arrives at a public hearing on the genetically modified (GM) eggplant crop in Hyderabad, India on Jan. 31, 2010. Indian officials have announced they will ban commercial planting

发表于:2019-02-04 / 阅读(60) / 评论(0)

VOA标准英语2010年(二月)

英文歌曲:爱的反抗力 Muse - Resistance

爱的反抗力 Muse - Resistance Resistance Muse Is your secret safe tonight? And are we out of sight? Or will our world come tumbling down? Will they find our hiding place? Is this our last embrace? Or will the walls start caving in? (It could be w

发表于:2019-02-05 / 阅读(85) / 评论(0)

好听的英文歌曲

每日一词【1046】shrug off：对某件事情满不在乎

今天我们要学的词是shrug off。 To shrug off, 意思是对某件事情满不在乎。 The stock indexes rose significantly as investors shrugged off last week's disappointing economic growth data, 投资者打消了上星期令人失望的经济

发表于:2019-02-07 / 阅读(117) / 评论(0)

英语每日一词

学个词Learn a Word 第1046期 To shrug off

发表于:2019-02-08 / 阅读(59) / 评论(0)

英语单词荟萃

美国俚语: 管教或者提出口头警告 crack the whip

crack the whip原本的意思是打响鞭，也就是挥动鞭子发出清脆响亮的爆裂一般的声音。这个习惯用语起源于十九世纪移居美国的人们前往西部开辟新天地的时候。他们把全部家当都装在骡子或者

发表于:2019-02-09 / 阅读(95) / 评论(0)

美国俚语

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学英语单词

adjudge sb. to death

antihemophilic human plasma