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Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(275) / 评论(0) 分类 新东方背诵文选

新东方赵丽词汇课堂 Lesson 106听力下载

发表于:2018-12-15 / 阅读(178) / 评论(0) 分类 新东方赵丽词汇课堂

Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many

发表于:2018-12-15 / 阅读(107) / 评论(0) 分类 VOA慢速英语2008年(六)月

An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ

发表于:2018-12-16 / 阅读(115) / 评论(0) 分类 VOA标准英语2010年(十一)月

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 2017年Scientific American(一)月

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

发表于:2019-01-02 / 阅读(135) / 评论(0) 分类 原版英语小短文

They were going to move to a new office. But why? Their current office was in a new building. It was in a nice neighborhood. It was near trains and buses. It was near shops and restaurants. The boss wanted to save money. They moved into their new off

发表于:2019-01-02 / 阅读(97) / 评论(0) 分类 原版英语小短文

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 英语小短文

By Efam Dovi Accra 23 August 2006 In Ghana, a high court in the capital Accra Tuesday sentenced five robbers to more than 300 years in prison in what the police say is a clear sign the country is taking violent crime seriously. The spate of armed ro

发表于:2019-01-11 / 阅读(215) / 评论(0) 分类 2006年VOA标准英语(八月)

By Carol Pearson Washington 27 March 2007 watch Heart Stem Cell report It is being hailed as a major medical breakthrough: cardiologists are using adult stem cells, not the controversial embryonic stem cells, to rejuvenate the hearts of patients who

发表于:2019-01-11 / 阅读(151) / 评论(0) 分类 2007年VOA标准英语(三月)

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(164) / 评论(0) 分类 2011年VOA慢速英语(二)月

'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the

发表于:2019-01-14 / 阅读(130) / 评论(0) 分类 VOA标准英语2011年(八月)

Sochi Olympics Most Expensive, but Not Best Organized 索契冬奥会:最贵却不是组织最好 Organizers of the Winter Olympics in Russia are scrambling to fix problems that are plaguing hotels and other facilities ahead of the Games opening ce

发表于:2019-01-14 / 阅读(108) / 评论(0) 分类 VOA标准英语2014年(二月)

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(131) / 评论(0) 分类 VOA标准英语2013年(七月)

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(148) / 评论(0) 分类 世界各地新闻集锦

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(176) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(175) / 评论(0) 分类 科技之光

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

发表于:2019-01-30 / 阅读(115) / 评论(0) 分类 健康与经济

By VOA News 20 November 2007 Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic stem cells. Laboratory teams at universities in the United States and Japan Tuesday announced

发表于:2019-01-31 / 阅读(100) / 评论(0) 分类 VOA常速英语2007年(十一月)

Topic 1-China to allow renting house partitions Though illegal group renting has been banned for decades, the practice has nevertheless stayed popular in big cities. Now Chinese authorities may legalize it. The government is reportedly considering a

发表于:2019-02-22 / 阅读(147) / 评论(0) 分类 英语角-圆桌会议
学英语单词
.an
alumima carrier
anaco
Anisotremus
anthocerotaless
architectural protection
articular cartilages
aspect system
autochangeover
barreness
battery compartment cover
bearing stool
blending lighting
broadcast television
by ahair
centropomid
chrysosoma pauper
circumrotary
coat closets
corrosive solid
crank and pin
di-deoxyinosine
diazonium
dibenzyl-mercury
dizzier
Dormettingen
Dorothy bags
double-play
erotema
Eurypygidae
expenditure on capital account
femur
gadolinium molybdate
genitofemoral
genus ormosias
get spliced
gloeosporium ribe montagne et desmaz
guideline lives
gullholm
hand fluoroscope
henssler
highest-profiles
house market
hurdy-gurdies
hypoid gearing
iceane
immitigably
indamine
indignly
inhibited children
karada
knot vector
leather hollows
location pin
lounge lizards
ludyl
main magnet coil
market channel
molten ash
Mount Forest
network map
neuroglioblastoma
news value
nightrider
ocean sampling and environmental analysis system
onthophagus (onthophagus) mendicus
Otmuchówskie, Jezioro
paysage
performance predicted value
photosystem complex
Phyllocladus asplenifolius
pieris japonica d.don
premollition
pseudo-complement
radar acquisition
real time output
regards
religious purpose
resumer
romilson
rossetto
Royal National Lifeboat Institute
screenhouse
shoujo ai
sit about
sliding vane
spotted lace
sprain of shoulder joint
subcommanders
swaddlings
tabanuss
table services
thanksgiving cactuss
Titumate
u.s.history
vehicular traffic lane
vertical axis wind turbine
vertical-disk type root cutter
voluntary savings
wildermuth
Writing puts to acquire stock
Yamantau, Gora