[网络] 四甲基氨

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(144) / 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(188) / 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(203) / 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(195) / 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(168) / 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(206) / 评论(0) 分类 60秒科学

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(182) / 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(193) / 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(222) / 评论(0) 分类 农业与发展

Good morning, from the CNN center here in Atlanta. I am Melissa Long. Its a Tuesday, August 4th and heres a look at some of the stories making news at this hour. Iran is finally confirming that it has arrested three American travelers, three America

发表于:2019-01-07 / 阅读(179) / 评论(0) 分类 CNN2009年(八)月

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(196) / 评论(0) 分类 VOA2003(下)-环境与健康

This is the VOA Special English Agriculture Report. University of Delaware scientists say trees can reduce emissions of dust, ammonia and odor from poultry farms Planting trees around poultry farms can improve air and water quality -- and please the

发表于:2019-01-11 / 阅读(169) / 评论(0) 分类 VOA慢速英语2008年(九)月

This is the VOA Special English Agriculture Report. Planting trees around poultry farms can improve air and water quality -- and relations with neighbors. Research has shown that just three rows of trees near poultry houses can reduce the release of

发表于:2019-01-11 / 阅读(206) / 评论(0) 分类 VOA慢速英语2009年(九)月

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(209) / 评论(0) 分类 经济学人科技系列

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(218) / 评论(0) 分类 VOA常速英语2013年(十月)

KIEV, Aug. 6 (Xinhua) -- The death toll in a chemical plant explosion in eastern Ukraine's Donetsk region has risen to 5 after two of the wounded succumbed to injuries, the Ukrainian State Service for Emergencies said on Tuesday. The blast occurred a

发表于:2019-02-06 / 阅读(194) / 评论(0) 分类 英语新闻

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(211) / 评论(0) 分类 万物简史
学英语单词
.pjt
active restraint
Adaptable Data Base System
angiocentric myofibroblastic tumor
be head over ears in
belt bag
benthobatis yangi
Biddle, Nicholas
blue horizontal branch
bow warping
bowlings
car park
citrus fruit syrup
Cremanthodium
cryptanalytics
cryptosyzygy
cspi
defectible
depth charge rack
dry type sand reclamation equipment
ductus muelleri
Dunmurry
economic co-operation
eight cut
electric advertising
electromagnetic current meter
emitters
enantiotropes
ending inventory stock status
extended display identification data
fine-wire
friction type mix
funambulant
fylette
gain an insight into
genal process
genus nipas
genus Pleurobrachia
golden b.
hat tree
helminthagogue
hogarths
Homogyn
hydraulic element
Infrastructure Trust
Iris psammocola
j-stroke
klenke
La Porte County
lengelo
lift schemes
lipomatous cancer
Livingstone sphere
long-radius grating
Lonicera syringantha
look to
matter of opinion
melanonid
merchant's rule
middle ventilation
misproportion
multi-infarct dementia
multiple carrier operation
N-(2-Mercaptopropionyl)glycine
neap rate
nipp
nonlinear transfer
northern pitch pines
output pattern
palpa
pancreaticohepatic syndrome
partial variation
peripheral chorioretinitis
phonograph connection
photo-respiration
picumnuss
pindone
piston ring scuffing
plug-in coil
PN method PN
pour-plate culture
pressitant
PTE (peculiar test equipment)
punch typewriter
relative frame
ridorkulous
satin bowerbirds
shortsea
single superphosphate
slanting edge
smoke detecting device
spectral homology sequence
spiral rate meter
St-Jean-d'Assé
stemless funnel
supplementary tank
syntax checking feature
time space graph
total system tape
triakaidekaphobe
tweetings
varia lectio