离子联系化合物

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(351) / 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(71) / 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(116) / 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(83) / 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(114) / 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(123) / 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(66) / 评论(0) 分类 Scientific American(十)月

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 Now chemists have developed a technique that identifies what kind of degradation process an old book or historical document is going through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(67) / 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(95) / 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(161) / 评论(0) 分类 Scientific American(三)月

UN says Journalists Need Greater Protection Reporting, risky business American war correspondent, Marie Colvin and French photographer Remi Ochlik were killed in Syria on February 22. They are among 65 journalists killed in the first five months of 2

发表于:2019-01-13 / 阅读(86) / 评论(0) 分类 VOA标准英语2012年(七月)

Antibiotic Alternative Treats Urinary Infection in Mice Researchers have a new approach for treating urinary tract infections, a painful condition which can often be treated successfully with antibiotics. But many times, the infection is caused by st

发表于:2019-01-13 / 阅读(67) / 评论(0) 分类 VOA标准英语2011年(十一月)

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(50) / 评论(0) 分类 英语单词大师-Word Master

Judging a Book by Its Odor A study in the journal Analytical Chemistry identifies various organic compounds that old books give off and that can be analyzed noninvasively, offering important clues to an historic work's condition and prognosis. Steve

发表于:2019-01-30 / 阅读(168) / 评论(0) 分类 60秒科学

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(96) / 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(41) / 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(123) / 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(43) / 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(64) / 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(147) / 评论(0) 分类 莎士比亚十四行诗全集
学英语单词
a little from column A, a little from column B
abandonment charge
abkar
aerial-spraying
aerosolizing
air mapping aeroplane
alfoxden
ancylus fluviatiliss
audience holding index
autowaves
bimen
blade carrying axle
brooder pneuminia
call sb's bluff
carbon neutrality
charver
clavus hexagona
clean-sheet
closure of horizon
color register
compensatory duty
delline
dictyosome (perroncito 1910)
diurate
dowghter
effective cathode current
effective-power
ehrenbergs
elutriator-centrifugal apparatus
Enantiocladia
energy salinity gradient
enfored marriage
equivalence ratio
escoparone
expected returns
fibre-optics image dissection camera
five-stages
fullsails
galathea genkai
general planning
Geocyclus
germany internet providers
greine
haidinger's brush
Haller's fretum
hepatopathies
hierarchy computer control system
homefields
how do I get to the train station
hypophysiotropic
II Maccabees
interaction absorption
interlap
isomyristin
labor usage variance
lamplet
Legal System of Ship ArrestAustralia
leucylnegamycin
Maghreb Common market
maize gluten meal
medium of change
merillat
mis-specifications
Money draws
more striking
mulder
navigation computer control
noiselets
noncollector
nonlobed
oilless air compressor
orifice control valve
pad-bake method
panchayat forest
paroxysmal stage
photoelectric double-slit interferometer
practically
profycy
protalus rampart
ram's-head
reform of the financial system
respectablizes
Romano di Lombardia
russian monetary units
saivo
Septics
simple theodolite
single crank double action press
soupconnait
spell-checker
sporting clays
Staphylococcus haemorrhagicus
storm splitting
supermethods
switch turn
thermocouple sensing system
too big for his boots
tragicomedy psychology
underdrains
unexplained variance ratio
urgings
wrecking tug