2-甲-5-苯噻吩

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(153) / 评论(0) 分类 2016年VOA慢速英语(十)月

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(189) / 评论(0) 分类 万物简史

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(192) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(171) / 评论(0) 分类 Scientific American(三)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(205) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(153) / 评论(0) 分类 初学者听力文摘精选

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(176) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(144) / 评论(0) 分类 英语听力文摘 English Digest

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(214) / 评论(0) 分类 60秒科学

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(200) / 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(226) / 评论(0) 分类 农业与发展

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(191) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(203) / 评论(0) 分类 Scientific American(十一)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(205) / 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(217) / 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(225) / 评论(0) 分类 VOA常速英语2013年(十月)

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(334) / 评论(0) 分类 英语新闻

BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(254) / 评论(0) 分类 英语新闻

ROME, April 30 (Xinhua) -- Giampaolo Pazzini came off the bench to salvage Inter with a brace in injury time on Saturday as the champions beat Cesena 2-1 to keep the Serie A title race alive until the next round of fixtures. Inter trailed through Igo

发表于:2019-02-05 / 阅读(208) / 评论(0) 分类 英语新闻

摇滚:Orianthi - According To You 相关介绍 :作为迈克尔?杰克逊最新的现场吉他手,Orianthi年纪尚轻却已经拥有相当多的吉他秀演出经历,曾经合作过的乐手大多大名鼎鼎,Steve Vai、Carlos Santana和已逝

发表于:2019-02-08 / 阅读(177) / 评论(0) 分类 英文摇滚歌曲
学英语单词
5-methyltetrahydrohomofolate
absolute idealisms
accentually
adsorption forces
alassios
anthropogenicalluvial soil
antisubversive
arthropathic
auricular lappet
back induction
bag ass
Baoding
be linked to
break down maintenance
chill without fever
China ink
circuit dropout
Cladorchis watsoni
clock multiplier factor
Cloonbannin
competitive evaluation
cooperative principle
coprotus glaucellus
culture distance
Delius, Frederick
depressing reagent
differential thermal expansion
digital picture processing technique
diphthongizations
error cancelling
fixed glass louver
formaldehyde oxime
freight tax
gargiollis
gas purification plant
helium family element
huminite (humic coal)
hydrograph
hydroxyprolyl-
hypercellularity
indirect mode
intermediate time scale storage
Invaluable Prescriptions for Ready Reference
knob-like
La Croix-St-Leufroy
linear expansibility
LineSpacing
liquor lockei
machine-team
malt spirits
mentacorla
microprocessor adaptability
minehillite
multiplelevel exit structure
navigating panel
Niu(Nyou)
non-revenue service
noncommutative operation
nucleus sensorius superior nervi trigemini
ophthalmopareses
ornamentalist
p generation
penicillinase-resistant antibiotic
permanent longitudinal magnetism
phage display
philed
pine knot
plank buttress
plow carrier
poddy-dodger
poppycocks
posl
pretermitter
Puerto Ceticayo
Rainday
rat-runnings
reinforcement on the reverse side
repressive tax
rusticity
Safané
schag
Semliki Forest
shed crocodile tears
soaring flying
spinachias
static breakpoint
stinks
studentized range
swingingmachine
time period
triacetamide
twileke
two-color offset press
wakes
wave guide impedance
Widows' and Orphans
wild bergamots
wool plucker
Zaarra
zygomatico-auricularis