四甲基三氧代嘌呤

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发表于:2018-12-04 / 阅读(295) / 评论(0) 分类 冀教版高中英语必修二

AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n

发表于:2018-12-16 / 阅读(191) / 评论(0) 分类 2016年VOA慢速英语(十)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(231) / 评论(0) 分类 Scientific American(六)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(237) / 评论(0) 分类 Scientific American(一)月

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(240) / 评论(0) 分类 Scientific American(三)月

You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t

发表于:2018-12-28 / 阅读(211) / 评论(0) 分类 初学者听力文摘精选

Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented

发表于:2019-01-02 / 阅读(241) / 评论(0) 分类 60秒科学

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(242) / 评论(0) 分类 科技之光

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(226) / 评论(0) 分类 医务英语

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(233) / 评论(0) 分类 医务英语

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(263) / 评论(0) 分类 农业与发展

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(238) / 评论(0) 分类 VOA2003(下)-环境与健康

Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(254) / 评论(0) 分类 经济学人科技系列

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(205) / 评论(0) 分类 英语博客 A cup of English

New Yorkers Take Transit Woes in Stride NEW YORK Life regained some semblance of normalcy on Thursday for New Yorkers affected by superstorm Sandy, as public transportation started to come online and millions of people returned to work. But for those

发表于:2019-01-31 / 阅读(233) / 评论(0) 分类 英语新闻

Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

发表于:2019-01-31 / 阅读(273) / 评论(0) 分类 VOA常速英语2013年(十月)

VIENNA, May 9 (Xinhua) -- The Austrian Olympic Committee (OeOC) nominated a further 13 athletes for its 2012 London Olympic Games team on Wednesday, bringing the total to 37 athletes across 12 sporting disciplines. OeOC President Karl Stoss said he p

发表于:2019-02-02 / 阅读(290) / 评论(0) 分类 英语新闻

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(252) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(237) / 评论(0) 分类 英语博客 A cup of English

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(252) / 评论(0) 分类 万物简史
学英语单词
a pile of shit
acneiform
adde
additional loss
allocation hardware resource
angina diphtheritica
application for documentary bills for collection
arteria caecalis anterior
association bookkeeping
auncestry
autoreclose
backup relaying
beat ... out
bolt and nut machine
c-CRK
Candida(Monilia)albicans
channel effect factor
channel scheduling
chinovariscite
ciprostene
clean on board bill of lading
coherent light beam
cold-hammer
colletotrichum lagenarium (pass.) ellis et halsted
community medicine
conjunctive method
crane load compensator
cross promotion
Durlesti
East Australia Current
ePeople
ephelis japonica p.henn.
estuarine circulation
Eurotiales
F instruments
faeroe
festo
forcipomyia (forcipomyia) arcigera
Freundlich isotherm equation
gornyi
guarneriuss
gymnameba
Hattstatt
hectonewtons
high skew propeller
INCSEA
intentional pollution
international marine fuels
intravenous pyelographies
ion collection pulse chamber
locomotive driver
Machilus nanmu
mainstreamness
Makassar(Macassar)
meglumine
mid-streams
minor trade
momorsion
monsodium acid methanearsonate
Mont Blanc
multi-level difference equation
multiple-arch dam
neoautochthon
neve
Notes Pages
numberof
operationalisms
optimism
oximide
PATP
period of deformation
picture shape
pile-screwing capstan
pintle type atomizer
pleomastic
polydora fusca
proof by recursion
quadrantic hemianopsia
quick-acting shutoff
ramrod
remote transmitter
report back
retrograde perfusion
running light test
savolainen
scanning search
silicotic nodule
spanitol
spijkers
Stellectomy
streptotibine
subcritical nuclear process
Sympatektoman
tetrabromosilane
the Advertising Association
think long and hard
unbaffled rod bundle
upper tree layer
work train
working valve
y'ins