8-氯苯硫代cAMP

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(173) / 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(149) / 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(130) / 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(122) / 评论(0) 分类 英语听力文摘 English Digest

Marlboro is the worlds largest selling brand of cigarettes. It is made by the Philip Morris Company, originally a London-based cigarette maker. Philip Morris named the cigarette after the location of the companys first factory in Londons Great Marlbo

发表于:2019-01-01 / 阅读(149) / 评论(0) 分类 各大品牌英文介绍

Writer Dorothy West: Last Living Member of Harlem Renaissance Written by Doreen Baingana (MUSIC) VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with the Special English Program, PEOPLE IN AMERICA. Every week, we tell about a person w

发表于:2019-01-02 / 阅读(152) / 评论(0) 分类 名人轶事

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2019-01-02 / 阅读(196) / 评论(0) 分类 午后咖啡

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(475) / 评论(0) 分类 2017年VOA慢速英语(六)月

PEOPLE IN AMERICA - May 12, 2002: Dorothy West By Doreen Baingana VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with the Special English Program, PEOPLE IN AMERICA. Every week, we te

发表于:2019-01-07 / 阅读(251) / 评论(0) 分类 People in America

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(166) / 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(175) / 评论(0) 分类 Scientific American(十一)月

Syrian Refugees Watch Violence Unfold from Border Camp Syrian helicopters buzz rebel-held territory - occasionally firing rockets that raise plumes of smoke. Army snipers holed up in a minaret take aim at anyone trying to flee Syria. Kilis refugee ca

发表于:2019-01-13 / 阅读(148) / 评论(0) 分类 VOA标准英语2012年(七月)

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: Anu Garg, creator of the A.Word.A.Day Web site and author of a new book called Another Word A Day: An All-New Romp Through Some of the Most Unusual and Intriguing Words in English

发表于:2019-01-18 / 阅读(187) / 评论(0) 分类 英语单词大师-Word Master

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(308) / 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(225) / 评论(0) 分类 英语新闻

Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf

发表于:2019-02-06 / 阅读(219) / 评论(0) 分类 英语新闻

Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele

发表于:2019-02-08 / 阅读(250) / 评论(0) 分类 VOA标准英语2010年(一月)

RABAT, Dec. 26 (Xinhua) -- The Moroccan national team coach Rachid Taoussi announced Wednesday the squad for the finals of the African Cup of Nations (ACN-2013) in South Africa from January 19 to February 10. Taoussi left out Queens Park Rangers forw

发表于:2019-02-08 / 阅读(251) / 评论(0) 分类 英语新闻

The International Organization for Migration says about 1,000 Moroccan migrants who came to Italy with the promise of seasonal work, are living in squalid conditions on abandoned farms. IOM says the migrants were lured to Italy with false promises o

发表于:2019-02-12 / 阅读(148) / 评论(0) 分类 VOA标准英语2009年(八月)

今天我们要学的词是summer camp。 Summer camp, 夏令营。Going to summer camp is a long tradition in the U.S. 送孩子去夏令营是美国一个历史悠久的传统。Some 8 million children attend summer camps each year, 每年有大约八

发表于:2019-02-18 / 阅读(147) / 评论(0) 分类 英语单词荟萃
学英语单词
analytical immunology of cellular function
and have done with it
annecy international animated film festival
architectural modeling
auto-relay
balancing piston wear ring
bald as a coot
beaten back
billing machine
Broyden method
Bulbophyllum affine
Burmannia coelestis
carbocaine
carionecrosis
casamir
cell of termination
circular trench
code-type radiosonde
color work
comany
Compton effect
Conoweld
consensuss
cool-room
cowtree
Crater Lake National Park
cuphea carthagenensis
dangerous drug clause
deserticola
designated drivers
duodenal ancylostoma
e-assessments
Eggiwil
electrochemical immunoassay
entrance lines
essential variables
Euonymus kengmaensis
Fentalē Isate Gemora
flanged lip
gadolinium isotope
gyrodyne aircraft
Heawood's conjecture
helically tothed wheel
Hippocratic succussion
Holy Father
Hökön
in hardback
individualic
infundibular punch
integrated optical waveguide coupler
intellectual toil
kelric
Kuwāna R.
kyanized
lever-loaded clutch
lift-diameter ratio
lightens
linked allocation of table
logical address
low-level cracking
macarism
measurement database
miseasy
Monoclonius
Motozintla
Narooma
navanes
neuroimagery
noncommodity exchange of products
open-hearth furnace cast steel
Ottenhofen
permissible levels of radionuclides
Phthinosuchus
poly A polymerase
powerman
PPPEE
pyrocatechin
rodenbeck
root positions
rubigen
Russian alphabet
scanatro
sequence relay
shield against
silk-print
spinningmill
succours
tamarindus
Tamtiga
terminate graphics
Thomson-Berthelot principle
trimethyl borate
Tungor
tunneling leaky mode
vena contract
vertical type generator
vine spreader
vital few
wardens
Wassermann's serum-nutrose agar
wastage rates in higher education
winch-rope reel