变分法中的拉格朗日问题

Music for Everybody I think the album, The Piano Player, is quite interesting. It’s quite 1) dynamic, we have the pure classical pieces, we have pop classical pieces, we have easy listening music of

发表于:2018-11-28 / 阅读(156) / 评论(0) 分类 疯狂英语2003年

No they didn't do, they did to the Y axis then... In Advanced Placement(1) Calculus, Tom Farber teaches problem solving. And at the beginning of the school year, he had one of his own. State budget cuts to education coupled with rising printing costs

发表于:2018-12-11 / 阅读(51) / 评论(0) 分类 万花筒2008年

Many teachers and parents have said it, it is sort of a thought ingrained in the American psyche that boys are better than girls at mathematics. But is it true? The lack of women mathematicians, engineers and physicists has often been cited as proof

发表于:2018-12-11 / 阅读(76) / 评论(0) 分类 万花筒2008年

variation n. 变化 assembly line 流水生产线 overcome v. 克服 imagery n. 意象,比喻 There are a lot of American businesses in china. Why are these businesses so popular? 在中国遍布着许多美国的企业,这是为什么呢? They

发表于:2018-12-28 / 阅读(106) / 评论(0) 分类 早安英文

Erina: Hi, Mike. I was wondering the difference between MMA and boxing? What are the differences? Mike: Well, there's a lot of differences actually. MMA stands for mixed martial arts so I guess by the name you can tell that there are a lot of differe

发表于:2018-12-29 / 阅读(93) / 评论(0) 分类 英语趣味课堂

图片1 In todays episode were going to look at an expression that you can use to say that something is yours. To make a claim that something or some activity belongs to you, you can call dibs. Its a funny little word with some variations that we als

发表于:2019-01-01 / 阅读(88) / 评论(0) 分类 英语博客-北美风情

A research team led by Professor Ye Kai from Xi'an Jiaotong University has detected the existence of dark matter in human genomes, including novel forms of complex variants that have never been observed before, Xi'an Daily reported on Oct. 10. 据《西

发表于:2019-01-03 / 阅读(59) / 评论(0) 分类 实用英语

11-year-old child prodigy Tanishq Abraham is in the news for graduating from college with not one, not two, but three different degrees. The talented kid from California made headlines last year as well, for completing high school at the age of ten a

发表于:2019-01-10 / 阅读(115) / 评论(0) 分类 阅读空间

Parents' Influence on Childrens Intelligence As researchers learn more about how childrens intelligence develops, they are increasingly surprised by the power of parents. The power of the school has been replaced by the home. To begin with, all the

发表于:2019-01-11 / 阅读(63) / 评论(0) 分类 白领英语晨读

By Greg Flakus New Orleans 28 August 2006 One year after the devastation caused by Hurricane Katrina in New Orleans, one of the city's main engines of economic activity is back with a vengeance. Business at the port is now above pre-Katrina levels.

发表于:2019-01-13 / 阅读(134) / 评论(0) 分类 2006年VOA标准英语(八月)

An international effort to build a detailed map of human genetic variation has completed its pilot phase and could shape a new understanding of human evolution and may help in fighting disease. Getty Images/iStockphoto The 1000 Genomes Project aims t

发表于:2019-01-14 / 阅读(65) / 评论(0) 分类 VOA标准英语2010年(十)月

You pump it at a high pressure through a nozzle. You create a spray of detergent. 你用高压将它压过一个喷嘴,你制造了清洁剂喷雾。 Then the spray dries. It turns into powder. It falls to the floor. 喷雾干燥后就成了粉末,

发表于:2019-01-18 / 阅读(96) / 评论(0) 分类 TED演讲教育篇

James: I'm starving. Cody: So am I. But we don't have much money. James: We have enough for McDonald's. Cody: That would be great. I could eat a Big Mac set. James: Sounds good. Are we going, then? Cody: Sure. I know what I'm going to have. James: Wh

发表于:2019-01-23 / 阅读(75) / 评论(0) 分类 英语学习乐园

Here he was, a man with a one-in-a-million mind, and he had yet to make any impact on the world. 而他,是一个目前依旧影响着世界的人,一个拥有独一无二的智商的人。 He wasn't holding forth at academic conferences. He wasn

发表于:2019-01-29 / 阅读(67) / 评论(0) 分类 异类:不一样的成功启示录

Todd: OK, Peter, can you talk about your country, Sweden, and what is life like in Sweden in winter? Peter: Swedish life in winter is really harsh, especially, it tends to get pretty cold, especially around December, January, that's when it's really

发表于:2019-02-06 / 阅读(72) / 评论(0) 分类 原版英语对话1000个

But think back to that second settled statistics that showed what happened between September and June. Schools work. 回头看看第二个表格,显示的是9月到6月之间产生的差距。 The only problem with school, for the kids who aren't a

发表于:2019-02-17 / 阅读(64) / 评论(0) 分类 异类:不一样的成功启示录

1、a change of pace 节奏变换 You cant do these chemistryexperiments all day long. You certainly need a change of pace. 2、 a far cry from 相距甚远 The published book is far cry from the early manuscript. 3、 and how 的确 A: Shes a good d

发表于:2019-02-18 / 阅读(128) / 评论(0) 分类 雅思英语

为了让大家可以更好的复习,小编整理了雅思听力的高频词汇给大家。 1. a change of pace 节奏变换 You cant do these chemistryexperiments all day long. You certainly need a change of pace. 2. a far cry from 相距甚远 Th

发表于:2019-03-04 / 阅读(185) / 评论(0) 分类 雅思英语

Todd: OK, Peter, can you talk about your country, Sweden, and what is life like in Sweden in winter? Peter: Swedish life in winter is really harsh, especially, it tends to get pretty cold, especially around December, January, that's when it's really

发表于:2019-03-06 / 阅读(127) / 评论(0) 分类 英语趣味课堂

今天我们要学的词是 driver. 大家都知道,driver 是司机,但是做为名词,driver 还有推动因素的意思。最近一项关于全球高科技市场的预测报告显示,China's business and consumer market will be the biggest

发表于:2019-03-07 / 阅读(140) / 评论(0) 分类 英语单词荟萃
学英语单词
acquisition equipment
acrodendrophily
airfoil/wing section
angular collenchyma
answer tone
arsenic oxychloride
Assets-in-place
assignable to
autodoping effect
be with it
blister roasting
blood and thunder story/tale
bonded phase packings
Borgloon
breech births
calfhood
Ceselmint
children's-book
Committee of the whole House
completely monotone
concentrated whey
contact phenomena
Cormac
count of monte cristo
Cunewalde
de o chon
dehumanises
delayed neurotoxicity test
deviation of centre distance
dimia formosana
dishdashis
drug idiosyncracy
Dutch New Guinea
each piece
factorial ecology
fenestra rotundas
flat connection
foramina of Monro
GDX
get on one's knees
governor dead time
ground dielectric constant
ground water cleaning
harmest
heat-flux dissipation
helical rotary pump
herringbone gear planing machine
hunger is the best spice
hypcoycloidal straight line motion
injection energy
international environmental standards
Kurt Vonnegut
laugh to scorn
least-favourite
leptinotarsas
levee plastering machine
logic short fault
Logovskiy
macroscopic viscosity
master relation
melt-off pore
Mont-aux-Sources
mullholland
multipath system
multiply-accumulate
non-stationary vibra-tion
nozzle disc
Okcheon
order of group
phantom ROM
picture-area shift
plumbylidene
polypodium virginianum l.
post-flight
potential energy line
precision of steady current
probe-set
psychobiologic
PTS (pressurized thermal shock)
risk-behavior
river-bank
Sandhem
satco
Scotch pancake
sedule
self-satisfying
semi-variable over head
Shipka Pass
show piece
sluice collar
small nuclear rna (snrna)
soldatesque
standup comedian
statutory guarantee
superradiance loss
sweep to victory
take minutes
tattling
tenuirostriss
Twinkie defense
unified calibration of standard model
zoapatanol