对卤代脂族化合物的研究

This is the VOA Special English Development Report. Right now, the top story in AIDS research involves newly announced findings about adult male circumcision. Two studies in Africa found that circumci

发表于:2018-11-27 / 阅读(443) / 评论(0) 分类 2006年慢速英语(十二)月

Could there be a substance that both gives us the munchies and can help combat obesity? There may indeed be, according to research published in the Proceedings of the National Academy of Sciences. The Monell Center in Pennsylvania partnered with Kyus

发表于:2018-12-02 / 阅读(134) / 评论(0) 分类 Scientific American(十二)月

1. Parts of North Carolina all the way up to Massachusetts have been rattled by an earthquake. The 5.9-magnitude quake was centered in Virginia and has caused minor damage and some injuries. 2. Hundreds of Libyan rebels have stormed one of Muammar Ga

发表于:2018-12-15 / 阅读(178) / 评论(0) 分类 美联社新闻一分钟2011(八月)

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water

发表于:2018-12-24 / 阅读(142) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60 Second Science, I am Cynthia Graber, this will just take a minute. Compounds found in the herb thyme have antibiotic properties. Now scientists have demonstrated that thyme might have a future role in fighting acne. A

发表于:2018-12-24 / 阅读(206) / 评论(0) 分类 Scientific American(三)月

Ever wondered why mosquito eat some people up but leave others relatively unscathed. a new study find this prefential treament due to smells produced by the microscopic critters that cover our bodies. the reaserch is in the journal public library sci

发表于:2018-12-24 / 阅读(188) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Take a deep breath. Taste anything? Actually, your lungs may, because scientists have discovered that the same receptors that exist on the tongue to tast

发表于:2018-12-24 / 阅读(135) / 评论(0) 分类 Scientific American(十)月

Of Study (Francis Bacon) Studies serve for delight, for ornament, and for ability. Their chief use for delight, is in privateness and retiring; for ornament, is in discourse; and for ability, is in the judgement and disposition of business. For ecpe

发表于:2018-12-31 / 阅读(189) / 评论(0) 分类 英语名著名段背诵精华

This book stinks! is really a bad review. But even a classic work can start to smell when it gets old enough. Now chemists have developed a technique that identifies what kind of degradation process an old book or historical document is going through

发表于:2019-01-08 / 阅读(127) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Chemistry goes to the University of Delawares Richard Heck, Purdues Ei-ichi Negishi and Hokkaido Universitys Akira Suzuki for their work in develop

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Wine can help keep conversation flowing at a dinner party. And now it looks like that wine may aid in materials science as well. Japanese researchers dis

发表于:2019-01-08 / 阅读(224) / 评论(0) 分类 Scientific American(三)月

Coffee is one of the world's most widely-enjoyed beverages. Flavor aside, scientists have recognized it as a complex blend of chemical compounds with potential health effects, both good and bad. Now, new research suggests that if you drink enough cof

发表于:2019-01-13 / 阅读(112) / 评论(0) 分类 VOA标准英语2010年(七)月

AA: I'm Avi Arditti. Rosanne Skirble is away, but joining me from Los Angeles is English teacher Lida Baker to explain our topic on Wordmaster this week. It's a feature of the language called compounding. LIDA BAKER: Compounding is when we take two w

发表于:2019-01-18 / 阅读(108) / 评论(0) 分类 英语单词大师-Word Master

Coffee is one of the world's most widely-enjoyed beverages. Flavor aside, scientists have recognized it as a complex blend of chemical compounds with potential health effects, both good and bad. Now, new research suggests that if you drink enough cof

发表于:2019-01-19 / 阅读(145) / 评论(0) 分类 VOA双语新闻 2010年7月

AA: I'm Avi Arditti. Rosanne Skirble is away, but joining me from Los Angeles is English teacher Lida Baker to explain our topic on Wordmaster this week. It's a feature of the language called compounding. LIDA BAKER: Compounding is when we take two w

发表于:2019-02-14 / 阅读(166) / 评论(0) 分类 英语单词大师-Word Master

AA: I'm Avi Arditti. Rosanne Skirble is away, but joining me from Los Angeles is English teacher Lida Baker to explain our topic on Wordmaster this week. It's a feature of the language called compounding. LIDA BAKER: Compounding is when we take two w

发表于:2019-02-14 / 阅读(108) / 评论(0) 分类 英语单词大师-Word Master

进行英语面试时,面试官会问到,你为什么觉得你胜任这项工作。那么你的回答就要让面试官相信你能把这份工作做好。本文列出了一些常见的问题和回答,仅供参考。 I (Interviewer 面试者) A

发表于:2019-02-18 / 阅读(185) / 评论(0) 分类 实用英语

Hey Don, do you like asparagus? Yep, I love it Yael, can't get enough. But don't you notice there's a certain problem after you've eaten it? Problem? Yeah, everybody knows that eating asparagus can cause a rather unpleasant smell in your urine. I did

发表于:2019-02-23 / 阅读(104) / 评论(0) 分类 英语时差8,16

But thats what comes out after we eat asparagus, which is not necessarily the same was what went in. Our digestive systems do some pretty complex chemistry, you know. Plus, the act of cooking the asparagus probably changes the chemistry around a bit,

发表于:2019-02-23 / 阅读(148) / 评论(0) 分类 英语时差8,16

Why is my verse so barren of new pride, 为什么我的诗缺乏点晴之笔, So far from variation or quick change? 行文沉闷呆板,千篇一律? Why with the time do I not glance aside 为什么我的诗不顺应时尚, To new-found meth

发表于:2019-02-24 / 阅读(209) / 评论(0) 分类 莎士比亚十四行诗全集
学英语单词
acetochlor
album paper
amsonate
anacanthobatis borneensis
anchor-men
angular kinematics
APEX 1,Apex
autarchical
beam sharpening
betz
Biphasil
Brain-sand
car clouts
cervical carbuncle
chernomyrdins
contrarotating propeller (crp)
contributionship
crushed ice
diacritical
dielman
dihydrosinularin
dot-matrix character generator
ef us
Ekman, Vagn Wilfrid
enemie
equilibrant
ergasiolgy
Euronithopoda
florigenic
forecastle lamps
Gikuyu
hair follicle intensity meter
Hampstead
high-voltage electrostatic vacuum cleaner
home taping
hot charging
in favour of
Isengrim
Ishim River
joco
katsinas
kayseria
ketocarboxylate
Laconist
letheral
lifting pipe
lipofibromas
macronucleus
main powerplant
matrix inversion technique
medium lift lock
meteorological dilution factor
Monobothrida
mountain to climb
neo-romantics
neologians
nonrandomly
normally clear signal
notarily
oleum terebinthinae rectificatum
one-paper
paratelepteris nipponica (franch. et sav.) ching
pars cochlearis
permit in
petty crimes
poulp
printing act
proscenium frame stage
pteris kidoi
pterogeina hologaster
queue packet
radio microwave search set
refloated concentrate
regressive burning charge
resonance activation integral
robot manipulation
rubalcava
running repair
scrabbed
semimonastic
serotherapeutical
sleevemaker
splotches
spun-bonded non-woven fabric
spurious class action
steam engineering
strained fruit
streptococcus MG agglutination test
stump auger
subcelestial
subrectors
tahsildar
tayammum
three-day treatment
tipula coxitalis
transpassable
uncollected debt
Vengerovka
vesicofixation
waldever's fluid
worchip