[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(205) / 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(343) / 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(351) / 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(314) / 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(220) / 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(154) / 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(205) / 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(195) / 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(231) / 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(195) / 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(185) / 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(361) / 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(166) / 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(175) / 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(258) / 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(179) / 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(216) / 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(193) / 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(212) / 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(251) / 评论(0) 分类 TED演讲教育篇
学英语单词
a good break
accommodativeness
aeronautical fixed radio service
alphasyllabary
Biletan
Bon Homme
branches out
bryology
capping-brick
cheque trading
circlejerks
Codonopsis macrocalyx
continuous indicating
corpus base
count sth out
cyclic daily duty
cycloadiphenine
decolonializing
dekanem
directorate general of telecommunication (dgt)
disamenities of economic growth
discharage
distributional
drying damp and eliminating phlegm
eighteen incompatible medicaments
Einstein single frequency
electro-acoustic tablet
errors of refraction
extract spatula
flrb
forced-steering radial truck
functioning capability
Fužine
glutathione-agarose
grouseward
guardrail
gusset sheet
hand-controlled regulator
high-pressure oil tube
holonomic constraint
Jalājil
kamidana
katritzky
keyed clamp circuit
kr?berite (pyrrhotite)
L-deprenyl
lanthanum metaphosphate
Leofungine
leukotrichia annularis
make it one's business to do
manattee
Milchell's screw anchor
millennial studies
miscorrection
monocoque construction
monostay
niobatian
non-forestry land
O.L.A.
one-way analysis of variance model
optimum turn
palena
papillary layer
pay later
Pellona
pentimal
photographic document copying machine
photolysis
platypus querci
portajohn
primary school performance table
primary table
pteraeolidia ianthina
ready payment
Samnanger
scotinos
separation
shaabans
Shulupaoluk
silica-gel grease
somport
straight-blade shearing
stringful
subarea
sun eczema
SWRT (Sodium Water Reaction Test)
talentless
test-skeins
thermionic tube volt-meter
transethmoid sphenoidal approach
tree schema
Uh (Uzh)
underfurnishing
universal thread grinder
vampily
vasomortor disturbance
war material
whitecomb
wing and body combination
yapan
yielding support
Zakamensk