反代数

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(100) / 评论(0) 分类 PBS访谈教育系列

Unit Fifteen [00:04.21]shopping [00:06.92]1.Listen to the short dialogue on the tape. [00:12.77]Fill in the missing information. [00:16.51]A Can I have a stamp for this letter, please? [00:21.86]B Where's it to ? [00:23.90]A Switzerland. [00:26.15]B

发表于:2018-12-07 / 阅读(137) / 评论(0) 分类 教你怎么听

发表于:2018-12-07 / 阅读(91) / 评论(0) 分类 知性英语

[00:00.00]MODULE 8 Around town [00:01.75]模块 8 小镇周围 [00:03.49]Unit 1 How do I get tothe Forbidden City? [00:05.49]第一单元去紫禁城怎么走? [00:07.48]Listening and vocabulary [00:08.56]听力和词汇 [00:09.65]1 Listen and matc

发表于:2018-12-13 / 阅读(117) / 评论(0) 分类 新标准初中英语第三册

1. discrepancy /disˈkrepənsi/ -- disagreement; difference; inconsistency; variation Jack should have had $8 in his wallet, but he had only $6. He could not account for the discrepancy. 杰克皮夹里应该有八块钱,可实际上却只有六块,

发表于:2018-12-30 / 阅读(110) / 评论(0) 分类 突破英文词汇

Lesson 24: [00:03.58]What Do You Know? [00:06.95]Have You Seen These Words? [00:11.00]animal [00:13.77]A dog is an animal. [00:17.71]So is a cow.So is an elephant. [00:23.67]duck food [00:28.03]We eat food.We eat all kinds of food! [00:33.70]give [00

发表于:2019-01-09 / 阅读(216) / 评论(0) 分类 河北加拿大版初中英语

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(111) / 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(103) / 评论(0) 分类 TED演讲科学篇

Co-renting with opposite sex vogue 流行 ; 风行 ; 时髦 Co-renting with members of the opposite sex has become very popular among young people in big Chinese cities, such as Beijing, Shanghai, Gua

发表于:2019-01-21 / 阅读(127) / 评论(0) 分类 阅读空间

The king of the state of Wei had the intention of attacking Handan,the capital of the state of Yue.Ji Liang,a minister of the state of Wei,heard of this and broke off his journey to return to the state of Wei.He went to see the king before

发表于:2019-01-30 / 阅读(140) / 评论(0) 分类 趣味英语

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(118) / 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(99) / 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(269) / 评论(0) 分类 英文语法词汇

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(97) / 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(168) / 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(107) / 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(130) / 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(102) / 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(126) / 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(155) / 评论(0) 分类 TED演讲教育篇
学英语单词
a millstone round one's neck
actinomycin-f2
air one's grievances
all electric
Aquirel
arue
authorized frequency
available per mu yield
berk
bibis
bill of exceptions
bit manipulation
building restrictions along mrt facilities
Bær
caliginosities
Cantherhines
cebocephaly
chemigation
Chloranthus glaber
close riveting
close talking microphone
constant flow chromatography
constitutional asb
crateriform
cretans
data entry function
deliniment
denotements
derailing stop
diaphanoscope
diethylene glycol diethyl ether
discharge pan
dizaomethyl
domed shell
expansion programme
family Notonectidae
Fischer's murmur
fishes
geddy
hand signaling devices
heavy fuel powerplant
Iaponia
in collusion
jet axis
laser energy transmitting optical fibre
Le Bourg-d'Oisans
leading edge (le)
lifting-eyebolt
MACTOR
make bold to
malemutes
mathematical statistics
mean linear velocity of mobile phase
medium-lift pump
miquelets
non-information
non-reciprocal recombination
of pus
order of compound
ordinary crossing
parallel storage
point spectrum type
port output queue
power-fail & auto restart
preallocated
precision small coaxal microwave connector
pseudo-principle
radiometer telescope
rattletrap
reaffirms
rearrival
rough wall solidification
safe estimate
sample-out count
sao thome e principes
selenomethylcholesterol
self-organization theory
self-purchases
Shuqayq
siciliani
Sigsig
simple frame core box
skimpingly
skinful
small-arm
solder embrittlement
somatotopies
sprete
sprowsie
stalkliker
stiff glaze
tbl
toilet bowls
traffic surveys
tree coding
true humic acide
UIPE
vapor barrier
virus isolation
Wassadou
xeromorphic xerophyte
Zypanar