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(102) / 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(54) / 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(112) / 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(73) / 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(39) / 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(114) / 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(87) / 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(106) / 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(114) / 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(69) / 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(68) / 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(58) / 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(93) / 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(107) / 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(51) / 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(67) / 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(82) / 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(161) / 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(133) / 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(95) / 评论(0) 分类 TED演讲教育篇
学英语单词
2-DIEP
arge
autoflash
babylonia areolata austraoceanensis
bar-stool
biastigmatism
blood-retina barrier
chemical remediation
chicken-shits
chiricahua apaches
chopped chopping
coconut-fibre
cohibit
coining compact
conceale
control rod lattice for criticality
coupling shaft
crimes against property
dense phosphate crown
deyoung
diffusing media
diode suppresser
distribution anisotropy
distribution trade
double graphite sleeve
draftmate
edge-support interface
electric fresh water heater
elliott type axle
expected data
field press censorships
fishing hook
Flauenskjold
florepleno
free valve mechanism
free-center-type clamp
galvanizing hot dip
Gibraltar for Orders
good Goddess
Habay-la-Neuve
hemobilirubin
hernangerine
heyses
high density cement
hose proof machine
hyperoxidative
hypomelanotic
interaction of species
intrinsic coercivity
Iyevkovo
lace paper
left-of-center
libelled
Little Tennessee River
martialities
mental institutions
Meredith, L.
metatrochophora
methylgreen-pyronine
mish-mash
molybdenumiron
monacolins
Muzalëvka
narrow-leaved plantain
nervi supraclaviculares
ninjutsus
Nunavimmiut
output (process)
paring knives
pipet filler
pked
qalat siman
radomir
remaining deviation
renal dysplasia
rose pinks
router table
selenous acid anhydride
sempre forte
serve a sentence on bail
shark oil
Silene macrostyla
silicate crown
silicon controlled
skive off sth
Solanum wendlandii
sorting key word
spratlike
spray solidification
Starbuck Glacier
static electricity spraying
structural material swelling
subsea work enclosure
tawite-porphyry
theoretical volumetric efficiency
tight monetary policy
titanic iron ore (ilmenite)
unhills
uniform effluent standard
vibration screen
wanjigis
water yam