苯巯基乙醇

By Brian Wagner Miami 30 March 2007 President Bush has set ambitious goals to reduce the country's dependence on oil, and increase the use of alternative fuels like ethanol. VOA's Brian Wagner reports from Miami that experts are now at work to ensure

发表于:2018-12-16 / 阅读(114) / 评论(0) 分类 2007年VOA标准英语(三月)

Superhero Thwarts Evil Nazi Plot in 'Captain America: The First Avenger' Acomic book super hero whose exploits began in the 1940's is back as one of this year's big action movies. Here's a look at Captain America: The First Avenger. General Patton ha

发表于:2018-12-16 / 阅读(58) / 评论(0) 分类 VOA标准英语2011年(八月)

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(117) / 评论(0) 分类 万物简史

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(95) / 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(59) / 评论(0) 分类 初学者听力文摘精选

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 cap [ kAp ] It's better to put the cap

发表于:2018-12-30 / 阅读(100) / 评论(0) 分类 每日攻克5词

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 cap [ kAp ] Clouds capped the woods. v

发表于:2018-12-30 / 阅读(251) / 评论(0) 分类 每日攻克5词

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(55) / 评论(0) 分类 英语听力文摘 English Digest

Today's podcast is going to test your knowledge of ethanol. What is it? How is it made? And what are the advantages and disadvantages of using it? I asked myself these questions recently, when I drove past a gas station that had a sign saying 'No eth

发表于:2019-01-01 / 阅读(72) / 评论(0) 分类 英语博客 A cup of English

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(105) / 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(103) / 评论(0) 分类 Scientific American(十一)月

By Paul Sisco Washington, DC 26 January 2007 watch Ethanol Alernative report In his State of the Union address, President Bush set an ambitious goal for the United States -- to reduce oil imports from the Middle East by 75 percent. He said this can

发表于:2019-01-13 / 阅读(113) / 评论(0) 分类 2007年VOA标准英语(一月)

Scientists in Australia are developing a thinking cap that could unlock our hidden genius, by switching on and off certain sections of the brain. Researchers at the University of Sydney think their experiments show that we all have hidden creative t

发表于:2019-01-13 / 阅读(135) / 评论(0) 分类 VOA标准英语2008年(十月)

Cutting Ethanol Subsidy Might Not Impact Food Prices With the U.S. ethanol industry consuming about a quarter of the nations maize crop, many have blamed biofuels for rising food prices in recent years. The new year brought the end to a $6-billion su

发表于:2019-01-13 / 阅读(58) / 评论(0) 分类 VOA标准英语2012年(一月)

Alternative Fuel Ethanol Hits a Wall 替代燃料乙醇遭遇难题/撞墙 When U.S. drivers fill their tanks with ethanol, they are essentially buying fermented corn grown by American farmers. A 2007 law requires gasoline makers to add increasing am

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2014年(五月)

By Greg Flakus Houston 16 October 2007 In recent months food costs in the United States have gone up by well over six percent and some economists see government-mandated use of bio-fuels as a key reason. But, as VOA's Greg Flakus reports from Houston

发表于:2019-01-25 / 阅读(95) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 07 March 2007 watch Ethanol Alternative Fuel President Bush speaks to reporters about how cellulosic ethanol can be produced from biomass such as spruce wood chips President Bush leaves this week for a five nation Latin Amer

发表于:2019-02-03 / 阅读(114) / 评论(0) 分类 2007年VOA标准英语(三月)

By Jeffrey Young Washington 16 October 2007 U.S. farmers have gone through many cycles of boom and bust. But as VOA's Jeffrey Young reports, prospects for American agriculture are looking up, thanks to rising crop prices and land values, especially i

发表于:2019-02-03 / 阅读(98) / 评论(0) 分类 2007年VOA常速英语(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(221) / 评论(0) 分类 英语新闻

LONDON, Nov. 14 (Xinhua) -- Liverpool's teenager winger Raheem Sterling is set to make his debut for England while his club teammate and captain Steven Gerrard is expected to earn the 100th cap in England's friendly against Sweden in Stockholm on Wed

发表于:2019-02-18 / 阅读(116) / 评论(0) 分类 英语新闻
学英语单词
Abd al-Aziz
Achkoute
active metabolite of drug
aeropolygon
agher
arteria ileocolicas
automatic variable
bachata
basic standard motion
bichu fibre
bombax ceibas
Capacity Liability
cetoenzyme
Chande Momentum Oscillator
Chilung
citrating
conclusion of pressure testing
conversion of wave
Coulomb friction
cut-off slope
declare the contract avoided
denigratings
departure
dissolved organic carbon (doc)
dog-trot
dysregulated
fast-flying
feedforward filter
flash band
FORAC
grooved rubber
handscroll
hash maps
have a sharp tongue
HEDSPA
hillandale
hop it!
hypertension of pregnancy
job opening
Kant, Immanuel
lashawn
leus
lichenian
load on substructure
manpower utilization
mental aberrations
methyltartronic acid
microwave resonance cavity
mill tackle
mira type variables
modified two stream instability
Napier Pen.
napoleans
Neuber's tubes
neurogliomas
neutrophilic granulocytopenia
niskanen
nonene
nonitalicized
normomagnesemia
nyggish
Ormideia
panier
patent information activities
persistent cruelty
physical object
positive reversing
power-drills
preprocessor
proportional dividers
proposition variable
red cell adhesion test
rehydration ratio
reversetranscriptase
Roosdaal
rotary index drum
runder
Russian doll
scene of crime
selenium intoxication
semilunaris gyrus
Serëdka
Sintuist
spectrological
sqms
stock system
sub-high pressure
syco
tacchinoes
tertiary industries
three-dimensional doublet
to return to one's muttons
Torremaggiore
Trindade, Pta.da
two-path feedback
under one's spell
vegetable cork
viperfish
visual scanning
water-gall
weber-fechner's law
wide-bore