L-NG-硝基精氨酸,L-硝基精氨酸

New Award Could Become Nobel for Engineering At Buckingham Palace, Queen Elizabeth presented her first ever Prize for Engineering, including one million British pounds, to Americans Robert Kahn and Vincent Cerf, and Frenchman Louis Pouzin for inventi

发表于:2018-12-08 / 阅读(151) / 评论(0) 分类 VOA标准英语2013年(六月)

By Rebecca Ward Washington 06 January 2006 H1 Bees Skrikanth Devarajan came to the United States on an H-1-B visa allowing him to work in the high-tech industry. But the Indian-born computer engineer

发表于:2019-01-04 / 阅读(182) / 评论(0) 分类 2006年VOA标准英语(一月)

分集介绍:导数,商数,正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(392) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

分集介绍:导数,斜率,速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(392) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏,它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(244) / 评论(0) 分类 英语对接游戏

AGRICULTURE REPORT – September 17, 2002: Genetically Engineered Food Aid By George Grow This is the VOA Special English AGRICULTURE REPORT. A food crisis in southern Africa has added to the debate a

发表于:2019-01-09 / 阅读(110) / 评论(0) 分类 农业与发展

By Suzanne Presto and Paige Kollock Washington 24 May 2006 watch OnLine Dating report As American society continues to strive for greater efficiency in all things, can even romance become streamlined? Busy young Americans increasingly rely on the In

发表于:2019-01-11 / 阅读(177) / 评论(0) 分类 2006年VOA标准英语(五月)

Jonathan: So, Jeff, you know, I don't know if I want go out to the pub again on Saturday. LIke, the music is a little bit too loud. It's hard to meet people and so on. I don't know. I've been thinking, we should do like some online dating. You know,

发表于:2019-01-11 / 阅读(129) / 评论(0) 分类 原版英语对话1000个

Technology Report - Event Aims to Build Interest in Science, Engineering This is the VOA Special English Technology Report. Last week we reported on Microsoft Corporations Imagine Cup finals in the United States. Team FlashFood from Arizona State Uni

发表于:2019-01-12 / 阅读(156) / 评论(0) 分类 2012年VOA慢速英语(六)月

By Greg Flakus New Orleans 25 August 2006 The American Society of Civil Engineers released a report in New Orleans Friday assessing problems with levees and pumping stations that led to the flooding of the city after Hurricane Katrina hit it a year

发表于:2019-01-13 / 阅读(219) / 评论(0) 分类 2006年VOA标准英语(八月)

By Odil Ruzaliev Washington 01 May 2007 For centuries, nomads wandered the steppes of Central Asia living in tents. One of the critical engineering elements of these flimsy structures was the tent band designed to brace the roof. Over time, these ban

发表于:2019-01-13 / 阅读(160) / 评论(0) 分类 2007年VOA标准英语(五月)

Promising Target For Malaria Vaccine Identified British researchers have discovered a biochemical key used by the malaria parasite to invade human blood cells. The discovery could pave the way for an effective malaria vaccine. The Plasmodium malaria

发表于:2019-01-13 / 阅读(158) / 评论(0) 分类 VOA标准英语2011年(十一月)

Online Video Service Targets Infants These days it seems like American television and videos have us in their clutches from cradle to grave. On the grave side, the Home Box Office cable-TV show Six Feet Under, about a family-owned funeral home, ran f

发表于:2019-01-13 / 阅读(99) / 评论(0) 分类 VOA标准英语2011年(七月)

California Winemakers Target China Producing Napa Valley wine is a highly skilled craft, and Chinese consumers are developing a taste for it, says Tom Hinde of Yao Family Wines, started by former Chinese basketball star Yao Ming. We've made five vint

发表于:2019-01-14 / 阅读(144) / 评论(0) 分类 VOA标准英语2013年(七月)

The Weekend - What a Bargain! (C0051) A: Hello. May I help you? B: Yeah, this dress is really nice! How much is it? A: That one is one hundred and fifty dollars. B: One hundred and fifty dollars? What about this other one over here? A: Thats one hund

发表于:2019-01-20 / 阅读(173) / 评论(0) 分类 纯正地道美语

The U.S. consumer watchdog agency has imposed its biggest fine ever - on Google, the popular Internet search engine. The Federal Trade Commission fined the American technology giant $22.5 million Thursday as settlement of charges that it violated peo

发表于:2019-01-22 / 阅读(151) / 评论(0) 分类 英语新闻

Sidney reread the song list and artists. He noticed that the classic song Moon River was sung by Danny Williams; Sidney thought that the original artist was actually Andy Williams. He told Gita that he had his doubts. She told him not to buy it, but

发表于:2019-01-27 / 阅读(116) / 评论(0) 分类 365个英语简短小故事

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(177) / 评论(0) 分类 健康与经济

今天我们要学的词是bargain。 Bargain, 是谈判,讨价还价的意思。OK, It's a bargain, 意思是好,就这么说定了。 Union representatives bargain with employers for better rates of pay every year, 工会代表每年都要就涨工

发表于:2019-02-06 / 阅读(135) / 评论(0) 分类 英语单词荟萃

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

发表于:2019-02-19 / 阅读(139) / 评论(0) 分类 听播客学英语
学英语单词
abasingly
administered warm
alfred fried
amino acid transacetylase
anamaloscope
annealing twin
antecessors
apparent diameter
as a matter of course
ball grip
Ballina
bantung
bar-chain method
bathing beach
be in charge
bite one's nails
black-handed gibbon
bog brush
class Gastromycetes
clematis patens morr.et decne
colo(u)r ink jet printer
crossed core type
cut in voltage
cutting buffer
cyanoacetylene (hc2cn)
desktop search
Dewar
digipurpurin
duckman
end face of tie
fiancees
free-flow bender
general-purpose Chinese character information processing system
generative vs. stagnation
genero
globalterroralert.com
hangman
hemocytes
hirise
hydroxybenzyl chloride
ignore mouse
inequality relationships
inlet mouth
intrinsic pathway
ka-boom
length of boom
linguistic turn of philosophicus
Liparis viridiflora
Ludwig Philipp
lunchroom
Mageroy(Makeroy)
model upon
module generation
nsoa
oleum jecoris aselli
Ostrum Furst syndrome
permanent symbol
piezo-electric acceleration meter
pipelet
plasma flame cutting
principal road
pull caps wigs
put into fullplay
pyramiding
radioactive drug
read mostly memory
recruitment of workers
rein
reinforced concrete footing
resultance
Sanderistas
schkuhrin
sharia lawyers
sheriffry
Silybum marianum Gaertn.
skenoscopy
slackpacking
sluice-way
spacing of frame
Spc2p
speed regulating motor
spinous country-rat
spleck
styile
survival environmental temperature
takeoff airspeed
tank sludge
tenancy system
tetrasilicide
thalictrum fortunei s.moose
tileboards
timodyne
to cap
trace back to
triple wedge
Tutcheria hirta
unbrakes
upper region
vanadoan
voltage clamping circuit
whispered sound audiometry