(电解)槽电阻

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(259) / 评论(0) 分类 VOA2003(下)-环境与健康

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(166) / 评论(0) 分类 VOA标准英语2015年(十二月)

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(207) / 评论(0) 分类 国家地理2008年

A: Hey, how's it going? B: Good. How about you? A: Not bad, thanks for asking. B: Have you been on the bus for a while? A: Only about fifteen minutes. B: Do you ride this bus often? A: Not really, I usually drive. B: You have a car? A: Yes, I do. B:

发表于:2018-12-30 / 阅读(151) / 评论(0) 分类 实用乘车英语

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(220) / 评论(0) 分类 VOA标准英语2008年(九月)

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(186) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(160) / 评论(0) 分类 VOA标准英语2008年(五月)

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(156) / 评论(0) 分类 VOA标准英语2012年(一月)

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(199) / 评论(0) 分类 VOA标准英语2010年(五)月

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(178) / 评论(0) 分类 VOA标准英语2015年(一月)

As Assault On Mosul Looms, Resistance Grows And ISIS Grows More Brutal play pause stop mute unmute max volume 00:0003:43repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your

发表于:2019-01-17 / 阅读(168) / 评论(0) 分类 2016年NPR美国国家公共电台10月

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(225) / 评论(0) 分类 2015CRI中国国际广播电台

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(182) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(168) / 评论(0) 分类 VOA常速英语2008年(四月)

By David McAlary Washington 10 January 2007 One of the main weapons to prevent mother-to-child transmission of the AIDS virus during birth is the drug nevirapine. But when nevirapine is used alone just once, HIV starts becoming resistant to it. Rese

发表于:2019-02-04 / 阅读(186) / 评论(0) 分类 2007年VOA标准英语(一月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(329) / 评论(0) 分类 英语新闻

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(152) / 评论(0) 分类 好听的英文歌曲

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(284) / 评论(0) 分类 趣味英语

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(232) / 评论(0) 分类 英语新闻

A: How's it going? B: Good. How about you? A: Not bad, thanks for asking. B: Have you been on the bus for a while? A: Only about fifteen minutes. B: Do you ride this bus often? A: Not really, I usually drive. B: You have a car? A: Yes, I do. B: So wh

发表于:2019-02-27 / 阅读(186) / 评论(0) 分类 乘公交-Taking the Bus
学英语单词
activity rate
aggravated criminal responsibility
ammongelatine dynatite
Angeln
appendicopathia
ardellae
babinger
behavest
bias optimization
black mulberries
blasted
Bokaro
Bushehr
camera cares
catedra
CCL2
coaxial wire armored cable
collective unconsciousness
common corn salads
computer controlled manufacture system
contrast of luminance
decomposed manure
deductive reasonings
deep-well pump house
Did you get dressed right away
Dinwiddie County
eat away at sb
elastic element
event driven system
Fila radicularia nervorum spinalium
fluorine containing lubricant
frit brick
Glomerella
guides to a preventive maintenance policy
hair belt
homeomorphic Riemannian manifold
ignimbrites
IMJS
immel
independent oil company
indexing register
kahlers
keratoconometer
kinema colour
kinoplasmic
kovars
Lavic L.
lenticular configuration
Ljung
long-tailed pheasant
map title
Meredith, L.
Methyldebenal
microfilm projector
mineralization rate
mollities
molybdenite
multitargeted
musculi semispinalis cervicis
near-size particle
near-sonic
nephroi
ningpo lac
no-through-road
non-watertight bulkhead
optical spectroscope
pattern-directed inference system
pennyless
polaroplast
presidentiables
prior transaction
product innovation
Ribeirão do Salto
river driving
sales agent
satyr plays
setem
shameful
shortest path
side panel
siem
silver lap machine
slurry coat
sodium-ichthyol
sphyrna tiburoes
spud lead
stationary iteration
subreference
tails assay
thearchy
thirty-first of May
timlin
tonsilla adenoidea
under-faction
university of chicago
valkyries
valve tappet adjustment
vector space
ventilation and air-conditioning room
well-acted
wineland
zanaloin