部份分割反矩阵

Sonja Pace Israeli troops have begun a partial withdrawal from parts of the Rafah refugee camp in the southern Gaza Strip, where their operations this week have left at least 41 Palestinians dead, sco

发表于:2018-12-08 / 阅读(211) / 评论(0) 分类 VOA2004(上)--国际时事

作文和听力,阅读一样,可以早做准备。现在流行的复习方法是从下半年复习,甚至是考试前3个月才开始复习。复习的教材无一例外的是考试虫系列的万能作文:背一二十篇作文模式,背一二

发表于:2018-12-12 / 阅读(149) / 评论(0) 分类 英语学习方法

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? The lure of gambling clearly comes from the chance of winning. But how exciting is it to almost win? A study in the February 12th issue of the journal Neuron look

发表于:2019-01-08 / 阅读(222) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(203) / 评论(0) 分类 Scientific American(八)月

在中国,普通话作为官方语言的地位日益巩固。然而在英国,为什么大多数的英国人不遵循标准的发音[standard pronunciation or RP(received pronunciation)],却喜欢操着一口地方口音呢?难道英国人不认

发表于:2019-01-11 / 阅读(158) / 评论(0) 分类 实用英语

Gold, Oil Prices Up as Investors Seek Safe Haven 投资者寻求避险:黄金、石油价格上涨 NEW YORK The up-and-down prices of oil and gold mirror the unsettled world situation, and both reflect the economic squeeze most nations currently face

发表于:2019-01-14 / 阅读(162) / 评论(0) 分类 VOA标准英语2016年(三月)

The important thing about units is that once we've made a new unit, we can treat it just like we did the old unit. 重要的是,一旦我们创造了新的单位,就能用旧单位那样的方法使用它。 We can compose composed units, and we

发表于:2019-01-17 / 阅读(429) / 评论(0) 分类 TED演讲教育篇

Which is correct: A dozen eggs is? Or A dozen eggs are? 哪个是正确的:a dozen eggs 'is' 还是 a dozen eggs 'are'? I remember being in elementary school, and my teachers making a big deal about the unit. 我记得上小学的时候,我们老

发表于:2019-01-17 / 阅读(181) / 评论(0) 分类 TED演讲教育篇

1. The work that Tim Pons and his colleagues published last week is basic research into the portion of the brain, the cortex, that one scientist says is responsible for all the interesting things we do. 剖析:在这个长句中, 共有两个定语从

发表于:2019-01-17 / 阅读(217) / 评论(0) 分类 雅思英语

Books and Arts; Book Review;19th-century British politics;Third man; 文艺;书评;19世纪英国政坛;第三人; John Bright: Statesman, Orator, Agitator.By Bill Cash. 《约翰布莱特:政治家, 演说家, 改革推动者》;比尔凯西。

发表于:2019-01-26 / 阅读(174) / 评论(0) 分类 经济学人人物系列

Popular choices include, tea,coffee,cocoa. Popular: 流行的 cocoa: 可可 最受欢迎的有茶咖啡可可 I see. No,no,no,wait. Don't hang up yet. hang up: 挂断 了解了解别先别挂 What about a recreational activity? recreational activity:

发表于:2019-01-28 / 阅读(161) / 评论(0) 分类 生活大爆炸第二季

Quite what Halley expected to get from him when he made his unannounced visit in August 1684 we can only guess. But thanks to the later account of a Newton confidant, Abraham DeMoivre, we do have a record of one of science's most historic encounters:

发表于:2019-01-29 / 阅读(129) / 评论(0) 分类 万物简史

By Scott Stearns White House 12 September 2007 President Bush gives a nationwide address Thursday in which he is expected to announce the gradual withdrawal of 30,000 troops from Iraq. VOA White House Correspondent Scott Stearns reports, opposition D

发表于:2019-01-31 / 阅读(286) / 评论(0) 分类 2007年VOA标准英语(九月)

Hong Kongs first leveraged exchange traded funds have launched in a bid to tap Asian demand for structured products, even as western regulators are examining the mechanics of leveraged and other riskier forms of ETFs. 香港首批杠杆交易所交易基

发表于:2019-02-01 / 阅读(152) / 评论(0) 分类 英语新闻

Heres one way to make sure you have perfect attendance in your class: 让你把全部注意力放在课堂上只有一种方法: Meet Pietro Boselli: Obviously, hes ridiculously good-looking. 来见见我们的彼得罗博塞利:看吧看吧,他真

发表于:2019-02-06 / 阅读(168) / 评论(0) 分类 阅读空间

You know how it goes: youre trying to talk to your grandchildren, but theyre constantly checking their beeping phones. Im listening . . . they insist. Except you know only too well theyre not. At home, over dinner, you want to catch up with your husb

发表于:2019-02-07 / 阅读(211) / 评论(0) 分类 阅读空间

和同事聊天时,她突然问我:当时,他是怎么向你求婚的,浪漫吗?我一愣,随即笑了:我老公是很木讷的人呢,你说会浪漫吗?虽然这样说,我心里却泛起甜丝丝的感觉来。他确实从来不浪漫,他的求婚没有

发表于:2019-02-18 / 阅读(178) / 评论(0) 分类 英语美文

Over the last 13 years, investors have experienced some of the largest financial bubbles in history. Asian currencies rose and fell, technology and Internet shares suffered staggering losses, oil and other commodities rode a wild roller coaster, and

发表于:2019-02-18 / 阅读(142) / 评论(0) 分类 阅读空间

一. 上升增长1.add up to 增加了eg. The total amount of added up to 14 billion pounds(14%) in 1994. 2. to jump to / to soar to 一跃达到/ 猛增到 eg. The total working days lost soared to 10 million in 1979. 3.an increase of ab

发表于:2019-02-18 / 阅读(205) / 评论(0) 分类 四六级写作指导

Law of Supply Demand: This is the founding block of economics. Whenever supply of something increases its price decreases and whenever supply decreases price increases. Thus, when you have excess production of corn, food prices decrease and vice vers

发表于:2019-02-25 / 阅读(190) / 评论(0) 分类 英文语法词汇
学英语单词
a tip
acetotoluide
al-digital method
back-selling
Bongao
bootblack
Borgou, Dép.du
building departments
bunker point
caput femoris
clew down up
co-level
colicin tolerant
COS cell
de-fragment
deceptive advertisements
differential pressure pickup
dimethylamine solution
disceat
doeglings
douaumonts
drill duck bill
electrically controlled phase
enteros
evasion of exchange control
existing contract
factioneers
feoffors
grey body radiator
have no equal in
hemiphaedusa bagsana
high impedance side hybrid feedback
high usage trunk
hinged gate weight controlled flowmeter
hypoecho
hystrix cristat
intermediate examination and measurement
intermolecular hydro gen bonding
inventives
joint electron device engineering council sdram
kabuki make-up syndrome
karoro
keeps after
kniphofia
Krossafelli
lakhvi
litchi
long chain reflex
lucency
mallowworts
mesplier
Microcory
muralha
nanisms
nnlc
nominal rudder torque
non-contribution clause
nought-withstanding
Nyaungbintha
operation Oberst's
operational bypass
operator dominance
ophthalmologically
Ott.
ozonic ether
Parnassia nubicola
particulate exnyme complex
pawl off lever
penelopizing
penetrameter sensitivity
phellomere
physical blowing
polydisc plough
reclamation district
recommended standard-232c
Rubia wallichiana
Scarl
sensuous test
ship queuing time
sodium chlorate
sovenance
ST_beliefs-and-opinions_trusting-and-not-trusting
staggerin'
summings
superallowed capture
taper turning attachment
tertiary roots
thaumatoptyx crassilamellata
theomedrine
time-savings
top piling
torpedo tail
Touros
trevice
Tricondonta
two-people
ultrasonic agglomeration
universal semantics
valnet
vertical size control
welding manner
wet sensor