[数] 有序代数结构

JUDY WOODRUFF: Now a look at how required math classes may factor into the academic success or failure of high school and college students. Hari Sreenivasan has the story as part of our weekly education series, Making the Grade. ANDREW HACKER, Author

发表于:2018-12-05 / 阅读(127) / 评论(0) 分类 PBS访谈教育系列

UNIT TWO [00:12.20]Gogo can fly.Picture 1. [00:20.24]What can Gogo do,Tony? I don't know.Picture 2. [00:32.63]What can you do,Gogo? I can dance.Picture 3. [00:45.56]That's very good,Gogo. Can he sing?Picture 4. [00:57.94]Can you sing,Gogo? Yes,I can.

发表于:2018-12-13 / 阅读(266) / 评论(0) 分类 小学综合英语3A

Unit 1 [00:27.95]The donkey and the pekinese [00:32.71]There was a merchant who had a Pekinese dog. [00:37.98]It was like a toy. [00:41.14]The Dekinese lived in the merchant's house, [00:45.90]slept on his bed, sat on his lap and lived an easy life.

发表于:2018-12-13 / 阅读(281) / 评论(0) 分类 小学综合英语6A

UNIT TEN [00:18.49]Ten apples.Picture 1. [00:25.76]A B C STORE.Picture 2. [00:34.53]One carrot.Picture 3. [00:42.55]Two lemonsPicture 4. [00:52.19]Three bananas. Picture 5. [01:00.73]Four sweets.Picture 6. [01:11.97]Five eggs.Picture 7. [01:22.13]Six

发表于:2018-12-13 / 阅读(255) / 评论(0) 分类 小学综合英语1A

A: What did you get for lunch today? B: All I had was a sandwich, chips, and soda. A: Where'd you get your food from? B: I went to the cafeteria and bought it. A: What sandwich did you order? B: I ordered a ham sandwich, but they gave me a bologna sa

发表于:2018-12-16 / 阅读(138) / 评论(0) 分类 英语情景对话-食物

Egypt's former President Hosni Mubarak has been ordered to be released on bail but is still under house arrest. On the same day, the EU decided to restrict weapons export to Egypt. CRI's Cao Yuwei has more. Egypt's deputy military chief has ordered f

发表于:2018-12-19 / 阅读(106) / 评论(0) 分类 世界各地新闻集锦

Stereotypes are usually the last thing to change in the face of contradictory evidence. A case in point is the long held belief that boys are better at mathematics than girls. Well a meta-analysis to be published in the journal Psychological Bulletin

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(一)月

A 33-year-old financial analyst in California recently quit his job to devote himself to an unpaid job teaching math on the Internet, and his lessons are reaching almost 100,000 people a month. In this week's edition of Making a Difference, we introd

发表于:2019-01-13 / 阅读(137) / 评论(0) 分类 VOA标准英语2010年(三月)

I'm here today to talk about the two ideas that, at least based on my observations at Khan Academy, 今天,我要分享两个观点,至少基于我对可汗学院的观察得出的, are kind of the core, or the key leverage points for learning.

发表于:2019-01-18 / 阅读(149) / 评论(0) 分类 TED演讲科学篇

If I could write a letter to me And send it back in time to myself at 17 First I\'d prove it\'s me by saying look under your bed There\'s a Skoal can and a Playboy no one else would know you hid And then I\'d say I know it\'s tough When you break up

发表于:2019-02-02 / 阅读(143) / 评论(0) 分类 美国乡村音乐

Language is hard. In fact, it's infinitely harder and more complicated than math. And yet, nearly every small child can learn and master language. 语言真的很难。老实讲,它比数学要复杂得多,也困难得多。不过,几乎所有的

发表于:2019-02-03 / 阅读(124) / 评论(0) 分类 英语新闻

351. odd a. 奇特的,古怪的;奇数的 352. omit vt. 省略 353. opponent n. 敌手,对手 354. opportunity n. 机会,时机 355. orchestra n. 管弦乐队 356. semester n. 学期;半年 357. se

发表于:2019-02-03 / 阅读(303) / 评论(0) 分类 英文语法词汇

LOS ANGELES, Nov. 2 (Xinhua) -- Troubled U.S. actress Lindsay Lohan, who has admitted to having violated her probation in grand theft and drunk-driving cases by failing to show up for court- ordered community-service appointments and therapy sessions

发表于:2019-02-05 / 阅读(119) / 评论(0) 分类 英语新闻

At first glance Esther Okade seems like a normal 10-year-old. She loves dressing up as Elsa from Frozen, playing with Barbie dolls and going to the park or shopping. 第一眼看上去,十岁的埃丝特奥卡德好像和同龄孩子没什么不一样

发表于:2019-02-05 / 阅读(130) / 评论(0) 分类 阅读空间

经典英文句子帮你记单词 1. With my own ears I clearly heard the heart beat of the nuclear bomb. 我亲耳清楚地听到原子弹的心脏的跳动。 2. Next year the bearded bear will bear a dear baby in the rear. 明年,长胡子的熊将

发表于:2019-02-06 / 阅读(199) / 评论(0) 分类 实用英语

Brad Paisley -- Letter To Me 写给自己的信 If I could write a letter to me And send it back in time to myself at 17 First I'd prove it's me by saying look under your bed There's a Skoal can and a Playboy no one else would know you hid And then I

发表于:2019-02-07 / 阅读(135) / 评论(0) 分类 经典英文歌曲

If I aint got nothing, I got you If I aint got something I don't give a damn, cause I got it with you I don't know much about algebra, but I know one plus one equals two And it's me and you, thats all we'll have when the world is thru Cause baby we a

发表于:2019-02-11 / 阅读(162) / 评论(0) 分类 The Voice 美国好声音

But when they really get pushy, people really get pushy, I say, I do it because you do it for your kid. 但是当他们变得有进取心时,我们就会变得更有进取心,我说:我这样做就像你们为自己的儿子做的原因一样。

发表于:2019-02-13 / 阅读(129) / 评论(0) 分类 TED演讲国际问题篇

Leaders: Big economic ideas Breakthroughs and brickbats 社论:重大经济思想突破与板砖 What economists can learn from the discipline's seminal papers 经济学家能够从这一学科的经典论文中所学到的 It is easy enough to cri

发表于:2019-02-17 / 阅读(152) / 评论(0) 分类 经济学人财经系列

You see, the autistic mind tends to be a specialist mind 自闭症患者通常都是有特别的心智的 good at one thing, bad at something else. 她们往往在某一方面做得很棒,在其他方面做得很糟 And where I was bad was algebra.

发表于:2019-03-04 / 阅读(185) / 评论(0) 分类 TED演讲教育篇
学英语单词
a lighted candle
aberrant reading
administered prices
adrenergic receptor
ambrosia trifidas
ankle-joint
antiwolf
aposiopesis
arabidopsis
arcus branchiales
awards-ceremony
berti
between-maid
billman
bit-patterns
boom iron
Boston opium
botham
Bramham
catalino
cement bonded sand
Cephalopelvimetry
Chesniella mongolica
cholinfall
circaetuss
coefficient of fittness
contourniated
coordination method
cropping with stubbles
crossed grating
datiscin
dimethyl-benzylamine
doubleganger
droyled
duplex double acting pump
dust precleaner
electronmicroscope
entericoid
episodic hypertension
FCAH
fixed guid
fixed resale price
flat bus-bar
fully protective tube housing
fundamental
gadolinium isotope
half breadth
hemp comb
hla
illegal dividend
incomplete type declaration
jeit
jugum (pl.juga)
lupus keloid
maiz
male gaze
Matthew Calbraith Perry
musikvereins
Muslimise
nitrodimethylaniline
no parallel print
non-oriental
nonaccidents
nutritional heart disease
on request
ontal
oulet hole
PA (performance analysis)
paraskeva
party-plans
per unit volume
permanent strength testing
platform ticket
PLOB
posterior paralysis
power-void loop stability
processing error
pseudoleukemic
Pstn. Public switched telephone network.
Qirmisah
RAMT
Ramus stapedialis
Reese dermatome
salpingemphraxis
self-designated
Singhalee
square plate
St Louis encephalitis
St-Philbert-de-Bouaine
steel tank
steering wheel clearance checking scale
strategic cooperation
swinging movement
System International
unprayed
Uraria picta
variable-density soundtrack
weightfulness
Windows Remote Management
wood for carving
working motion
Yershichi