(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(141) / 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(71) / 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(117) / 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(69) / 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(130) / 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(107) / 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(76) / 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(72) / 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(119) / 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(93) / 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(89) / 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(137) / 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(99) / 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(99) / 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(100) / 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(221) / 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(81) / 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(206) / 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(159) / 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(109) / 评论(0) 分类 乘公交-Taking the Bus
学英语单词
admission cam
after someone's blood
AID-like syndrome
amical
apply the screw to someone
arch principle
awous
back-up reference station
Baikanthpur
ballymores
bead plane
berth number plate
bibliomanian
bostrychid
cargo spotting attachment
ceiling crab
central-local
chinovariscite
colligations
compacting width measurement
Corydalis glycyphyllos
crack driving force
critical distance
culinarian
dc beta
delerious
Digital Touch
Dirksland
disk magazine
double-precision quantity
drop and continue
emphysema of lungs
flightpath computer
frictiongear
fuel transfer gate
funiculus ventralis
graphics projector
Harvey County
horizontal filter-well
hourglass tumor
hybridizability
hydraulic blow
interface composition
isordil
jiu-jitsu
joachims
Kolbe-schmitt synthesis
labour statute
laser receiver
leese
Lepontic
Lysimachia nanpingensis
Magola
market-watcher
mean high water spring tide
modern analysis
money wage rate
multiple resonant line
Neoliponyssus
nuclear energy change
occupational therapies
panicles
paroxysmal hyperthyroidism
peak overlap
Pentraeth
Platanthera tipuloides
positive driver type supercharger
preslaughter weight
private health policy
pyramiding
raster irregularity
reflowings
Reuchlin, Johann
rhinoscleroma bacillus
root-bark of tree peony
rotation net
second-stage graphitization
selective reinforcement
semiconductor heat conductivity
Semo
shaped pressure squeeze board
skogens
sneeze at
sponge upon
state-system
static brush
substra
sx.
symmetrical short-circuit
take-and-bake
tea plant pruning machine
tell its own story
time interval selector
to initialize
tomika
tonnage laws
traveloguers
tuberculum dentale
ungratefulness
viraginity
write once read many optical disc
zomaxes