[=diazodinitrophenol]重氮二硝基苯酚

by Jason Marshall In past articles weve talked at length about three of the big four traditional processes used in basic arithmetic: addition (see also How to Add Quickly), subtraction, and division. However, for one reason or another, we havent yet

发表于:2018-12-07 / 阅读(188) / 评论(0) 分类 数学英语

图片1 图片2 图片3 by Jason Marshall Today we're turning our attention to using everything we've learned so far to help you solve math problems faster than you ever thought was possible. In this article youll learn two tips to help you add quick

发表于:2018-12-07 / 阅读(277) / 评论(0) 分类 数学英语

图片1 图片2 图片3 图片4 图片5 图片6 图片7 图片8 图片9 by Jason Marshall Continuing our quest towards turning you into a quick-calculating machine, today were building upon last weeks tips with one additional very important tip that

发表于:2018-12-07 / 阅读(169) / 评论(0) 分类 数学英语

By Robert Berger Jerusalem 30 September 2006 Labor unrest is growing in the Gaza Strip, where cash-strapped Palestinians are venting their anger at the government, led by the Islamic militant group Hamas. Hamas has rejected international conditions

发表于:2018-12-07 / 阅读(227) / 评论(0) 分类 2006年VOA标准英语(九月)

A zoo employee was bitten by an African puff adder, a large poisonous snake. He was trying to put the snake into a bag so that it could be moved to a new snake house. The snake handler was wearing heavy gloves and thick boots, but the adder sank its

发表于:2018-12-11 / 阅读(174) / 评论(0) 分类 原版英文小故事

This is the VOA Special English Economics Report. President Obama held a White House conference this month to discuss ways to prevent bullying in school. But bullying is a problem not just among young people. Workplace bullying can involve threats, b

发表于:2018-12-16 / 阅读(274) / 评论(0) 分类 2011年VOA慢速英语(三)月

Todd: Masako, I was very surpised to hear that you are actually a grandparent. Masako: Yes, yesTodd: You look very young. I was very shocked. Tell me about your grandchild. Masako: She's a baby. Of course. A baby, a baby girl. And her name is, it's H

发表于:2019-01-02 / 阅读(181) / 评论(0) 分类 英语访谈对话

Grammar Girl here. I'm on vacation this week, but before I left I updated one of the early episodes that I took down a few months ago. I hope you enjoy this new and improved version. Today's topic is addictive versus addicting, and we'll get to use a

发表于:2019-01-02 / 阅读(206) / 评论(0) 分类 英语语法 Grammar Girl

by Jason Marshall Weve spent the last few articles building our numerical vocabulary from the ground up. Today, were going to talk about something that sounds hard, but is actually pretty easy...and very useful too: the commutative property of additi

发表于:2019-01-02 / 阅读(292) / 评论(0) 分类 数学英语

by Jason Marshall Todays article will walk you through the first steps of kicking your calculator dependency. This isnt something we can accomplish in a single article, so well be revisiting this topic periodically. Today, were kicking things off by

发表于:2019-01-02 / 阅读(307) / 评论(0) 分类 数学英语

Maria was learning to add numbers. She liked to add numbers. It was easy to add numbers. She could add one and one. She knew that one and one are two. She knew that two and two are four. She knew that three and three are six. But that was it. She did

发表于:2019-01-06 / 阅读(192) / 评论(0) 分类 超级简单英语阅读

when the night has come and the land is dark and the moon is the only light we'll see no, i won't be afraid no, i won't be afraid just as long as you stand stand by me so darling, darling, stand by me, oh, stand by me oh, stand, stand by me stand by

发表于:2019-01-10 / 阅读(196) / 评论(0) 分类 The Voice 美国好声音

I feel the earth move under my feet I feel the sky tumbling down I feel my heart start to trembling Whenever you're around Oh baby When I see your face Mellow as the month of May Oh darling I cant stand it When you look at me that way I feel the eart

发表于:2019-01-10 / 阅读(235) / 评论(0) 分类 The Voice 美国好声音

By Dan Robinson Capitol Hill 14 March 2006 Wednesday the Liberian president will address what is called a joint meeting of Congress, an honor given to foreign leaders, the most recent being Italy's pr

发表于:2019-01-11 / 阅读(233) / 评论(0) 分类 2006年VOA标准英语(三月)

AS IT IS 2013-05-27 Help for Heroin Addicts Hello, and welcome to As It Is -- VOAs daily magazine show for people learning American English. Im Christopher Cruise. Today on the program, we report on how vaccines are being used in the fight against ch

发表于:2019-01-12 / 阅读(197) / 评论(0) 分类 2013年VOA慢速英语(六)月

Todd: Masako, I was very surpised to hear that you are actually a grandparent. Masako: Yes, yes Todd: You look very young. I was very shocked. Tell me about your grandchild. Masako: She's a baby. Of course. A baby, a baby girl. And her name is, it's

发表于:2019-01-16 / 阅读(144) / 评论(0) 分类 原版英语对话1000个

By Nico Colombant Dakar 15 February 2007 Many West African countries do not have enough money to pay teacher salaries on a regular basis or to refurbish schools. The result is a decaying educational system, with frustrated teachers, students and par

发表于:2019-01-31 / 阅读(236) / 评论(0) 分类 2007年VOA标准英语(二月)

Todd: OK, Jeff, we're talking about odd jobs. Good jobs, bad jobs, strange jobs we've done. What's an odd job you've had Jeff? Jeff: Todd, one of my oddest odd jobs might be was when I was backpacking through Europe after university, I ran out of mon

发表于:2019-02-06 / 阅读(166) / 评论(0) 分类 原版英语对话1000个

遥望那段漂浮着柳絮和直到世界末日歌声的时空,才发现...放下后,除了年华,我们什么也没失去。却得到更多。 You're not the only girl in town All my friends keep tellin' me You're not hte only girl in town Bu

发表于:2019-02-11 / 阅读(312) / 评论(0) 分类 音乐天堂

Thank you. Thank you, very much. Chancellor Kohl, Governing Mayor Diepgen, ladies and gentlemen: Twenty four years ago, President John F. Kennedy visited Berlin, and speaking to the people of this city and the world at the city hall. Well since then

发表于:2019-03-16 / 阅读(375) / 评论(0) 分类 名人演讲
学英语单词
a smaller percentage of the gerplasm strains
Adenophora rupincola
aesthetic treatment
Amphicoela
an ass
archaeogenetic
arroyo-running
balsam apple
benny goodmen
biochemical metastasis
Buqda Cagable
but too true
carnosinuria
catalytic reduction
cattley guavas
cement-based
Cesar Chavez
cinetonucleus
clampshell nozzle
coleopterus
complete elliptic integral of the first kind
confessiones
core isomerism
cryoprecipitate
cutter loader bed
cyclocitrane
Danemen
desert l.
direct heat exchanger
Dirichlet integral
Dravidian language
entreatingly
etherizing
expiration card
field ampere-turn
fierz theorem
Flat demand rate schedule
gobbled
gravid emphysema
hammered vibrator
handling procedure
hochoy
huber heights
hydrological regional analysis
inhospitalious
inner containment
intercalary chlamydospore
intermolecular potential energy
jacobson's commissure (or jacobson nerve)
Javalón, Pico
klebsiella genitalium
lipoid fibroma
macheath
mdrtb
meet trouble halfway
MIDGLEY
minimal stimulus
mioticphase
Morwāra
mountain villa
moving backward
nationalgeo
not hear of sth
Novokhopërsk
number eights
Olongoné
opal phytolith
oral chancroid
parfocal eyepieces
phlegmier
phyllodes eyndhovii
postlaunch
pragmatic analysis
pressed felt
put sb out of action
queue linkage entry
rehappen
relative target bearing
rerun test
Robertsfield(Robert Internat.Airport)
select objects
selenography
shrub savanna
slot form
solid state devices
spray deoiling
state-systems
stomere
swagbellies
tax-advice
tea-house
tetraethyl ammonium chloride
three-dimensional variable length table
torsion box girder
transfer mapping
Trimax
trissolcus basalis
undersealed
ungrieffulness
vinik
vouchsafes
wasting property