离散选择模型

Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 Scientific American(二)月

2 What does the man mean? [A ]The football players have done very well. [B] The next competition starts next week [C ]The team needs more experience

发表于:2018-12-30 / 阅读(149) / 评论(0) 分类 听听测测

You call Sean,your first choice Hello Hello, I'd like to speak to Sean Conners, please. Speaking. My name is Misa. I'm a photographer for a fashion magazine. Yes. Right now my magazine is trying to find a new model, a new face. I was going through so

发表于:2019-01-02 / 阅读(215) / 评论(0) 分类 游戏学英文男女速配

Grammar Girl here. Today's topic is whether--not rain or sunshine, but whether w-h-e-t-h-e-r, as in whether you like it or not, it's the topic. [Listener question about if versus whether and whether you need an or not after whether] Well, it's been a

发表于:2019-01-07 / 阅读(133) / 评论(0) 分类 英语语法 Grammar Girl

Most people feel nervous prior to giving a speech. This is human nature and indeed some degree of nerves is absolutely essential to remain alert and deliver the speech clearly. However nerves do become a problem if they are debilitating in any way. T

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 英语小短文

Everybody knows that the dice are loaded 每个人都知道骰子被灌了铅 Everybody rolls with their fingers crossed 每个人都知道跟着他们手指的方向走 Everybody knows that the war is over 每个人都知道战争已经结束 Everyb

发表于:2019-01-10 / 阅读(187) / 评论(0) 分类 美国偶像 American Idol

When Is a Choice Not Really a Choice 选择 Now, the VOA Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇掌故节目。 Making choices is necessary, but not always easy. Many of our expressions tell about this

发表于:2019-01-12 / 阅读(189) / 评论(0) 分类 2014年VOA慢速英语(一)月

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: new standards for English learners in American public schools. RS: One in nine public school students is a non-native English speaker; in twenty years, it could be one in four. Th

发表于:2019-01-18 / 阅读(163) / 评论(0) 分类 英语单词大师-Word Master

Books and Arts; American art museums; A hinterland beauty; 文艺;书评;美国艺术博物馆; 腹地美景; Moshe Safdie and some intelligent curatorial work have produced a rural gem; 摩西萨夫迪和一些聪明的策展工作创造了一个田

发表于:2019-01-27 / 阅读(172) / 评论(0) 分类 经济学人文艺系列

德国杂志揭示了美国国家安全局黑客入侵手段 LONDON - A German magazine lifted the lid on the operations of the National Security Agency's hacking unit Sunday, reporting that American spies intercept computer deliveries, exploit hardw

发表于:2019-01-31 / 阅读(173) / 评论(0) 分类 英语新闻

A major conference, The 2015 Conference on Big Data Index of Culture and Entertainment Industry, was held on Friday in Beijing, during which awards were given to the most talked about TV series, online dramas, movies and variety shows in China. Stand

发表于:2019-02-01 / 阅读(133) / 评论(0) 分类 实用英语

Everybody knows that the dice are loaded 每个人都知道骰子被灌了铅 Everybody rolls with their fingers crossed 每个人都为自己的命运捏了一把汗 Everybody knows that the war is over 每个人都知道战争已经结束 Everybody

发表于:2019-02-01 / 阅读(156) / 评论(0) 分类 听歌学英语

Dangling bonds 悬挂键 Dark current 暗电流 Dead time 空载时间 Debye length 德拜长度 De.broglie 德布洛意 Decderate 减速 Decibel (dB) 分贝 Decode 译码 Deep acceptor level 深受主能

发表于:2019-02-05 / 阅读(149) / 评论(0) 分类 实用英语

You Can Beat Depression by William Thomas Buckley Depression has always been considered a disease of life's middle or later years, but doctors are now reporting a surprising surge in cases among younger people. Why is depression striking earlier and

发表于:2019-02-07 / 阅读(164) / 评论(0) 分类 实用英语

His main work done, Patterson now turned his attention to the nagging question of all that lead in the atmosphere. He was astounded to find that what little was known about the effects of lead on humans was almost invariably wrong or misleadingand no

发表于:2019-02-17 / 阅读(111) / 评论(0) 分类 万物简史

考研 http://www.kuakao.com/完型,大家都非常熟悉的题型,但在这一部分,真正得高分同学非常少,因为它非常难。难就难在我们大家必须要掌握雄厚的语言基础实力和理解上下文语句的逻辑推理和

发表于:2019-02-17 / 阅读(127) / 评论(0) 分类 考研英语

It's a stat that gets bounced around as e-mail-forward wisdom: men think about sex every seven seconds. Even when the idea lacks this mythical specificity and grandiosity (that's 7,200 times a day!), the idea that men think about sex basically all th

发表于:2019-02-17 / 阅读(134) / 评论(0) 分类 阅读空间

1959: The Year That Changed Everything A crowd gathers in New York's Times Square to usher in the New Year, 1959. The importance of what future met them that year is still being debated. How Significant Will 2009 Appear in the Lens of History? Jeff G

发表于:2019-02-18 / 阅读(228) / 评论(0) 分类 阅读空间

Now, have any of y'all ever looked up this word? 好,你们中有谁查过这个单词? You know, in a dictionary? Yeah, that's what I thought. 用字典?是的,我想也就这个样子。 How about this word? Here, I'll show it to you. 这个单

发表于:2019-03-04 / 阅读(208) / 评论(0) 分类 TED演讲教育篇

For years, I had resisted medication, making many, many efforts to get off. 这些年来,我一直反对用药,为此会付出一切。 I felt that if I could manage without medication, 我感觉到我不服用药物也可以保持 I could prove

发表于:2019-03-04 / 阅读(157) / 评论(0) 分类 TED演讲教育篇
学英语单词
anything is possible
arevareva
armanini
automatic data acquisition system
barge operaions system simulation
bartik
barvel
Beerbohm
Bol'shiye Uki
bomb rack
bowiare
bus-bar clamp
butanonediol
cardioaccelerating center
choleresis
chubais
cinnamyl anthranilate
club-law
cocalvirus
cochleariformis
come down hard on sb
computer break-in
corkscrew effect
crankshaft housing
digital recording analyzer
diiodomethylarsonic acid
dinoceratans
diplodal
disadvance
disk chromatography
Dorgan, Thomas Aloysius
ethnonymous
excitation of a gas
facultative photoautotroph
fibropurulent
file-fish
flexure test bar
genus spragueas
girly mag
head stepping rate
horny cancer
impatient for
importing country
intergular plate
intulo
inward traffic
isoneomatabiol
kiesecker
Lebyazh'ya
Lejasciems
leptorrhinic
luttered
Lutzmannsburg
MAI (multiple address instruction)
major war criminal
mast wedging
mean absorption coefficient
micro flame ionization detector
motor disturbance
neuroectodermal
newscrawl
non-uniform compact source
oathable
onthophagus (onthophagus) tatsienluensis
over-constrained kinematic chain
overshot water wheel
Paduan
panchachuli
pecuniary embarrassment
Podgoshchi
polymeniscous
popgun
postearthquake
potassium ethyldithiocarbonate
praco
quick union
reinvoicing
replumed
risolone
rocking valve
Shubert Brothers
skinnis
stagnize
statistical physics
stress distribution property
taphonomists
three-petaled
to bail
tricyrtis formosana lasiocarpa
trituruss
trown
tuckson
two-time
unclejis
urogenital membrane
vanadiumsteel
vapor dome
volcanising
wave-hopper
wooden bomb
woonerfs
zirconyl metaphosphate