拟拉格朗日极小化问题

A: I need somebody to come over and fix my internet. B: What's wrong with it? A: For some reason it's just not connecting. B: How long have you been having this problem? A: It hasn't been working the past few days. B: Does the internet come up at all

发表于:2018-11-30 / 阅读(202) / 评论(0) 分类 英语情景对话-日常生活

[00:08.00]Unit 8 Lesson 1 No problem [00:10.80]1.Excuse me. Hi.Can I help you? [00:15.38]I have an appointment at the Blacksmith House Cafe in Cambridge. [00:18.67]How can I get there,please. [00:20.35]2.Do you know where in Cambridge? It's in Harvar

发表于:2018-12-03 / 阅读(206) / 评论(0) 分类 直捷英语

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(154) / 评论(0) 分类 数学英语

Eve and Adam are talking. E: Do you know I've put on 5 kilos since going out with you? A: Why's that? E: You're always taking me to fancy restaurants. A: Well, you don't have to eat so much when we ea

发表于:2018-12-08 / 阅读(232) / 评论(0) 分类 赖世雄中级美国英语

本讲为2005年下半年新的教学内容,请对照教材听录音! I heard him _sing_ (sing). I don’t like letters _written_ (write) in pencil. Such programs could teach the local people how

发表于:2018-12-15 / 阅读(134) / 评论(0) 分类 自考英语(一)78讲

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(214) / 评论(0) 分类 Scientific American(十)月

Direction:For this part,you are allowed 30 minutes to write a composition in three paragraphs.You are given the first sentence of the three paragrapgs.Your part of the composition should be no less than 100 words,not including the words given.Remembe

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 英语四级作文范文

A man was at the doctor's office.

发表于:2019-01-11 / 阅读(301) / 评论(0) 分类 英汉幽默故事选读

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(163) / 评论(0) 分类 2006年VOA标准英语(八月)

Harry had a bit of a drinking problem. Every night, after dinner, he took off for the local watering hole. He spent the whole evening there, and arrived home, well inebriated, around midnight each night. He always had trouble getting his key into the

发表于:2019-01-16 / 阅读(132) / 评论(0) 分类 趣味英语

Hungary Has A Xenophobia Problem RACHEL MARTIN, HOST: Take A Number is our series that uses a numerical figure to explore problems around the world. And today's number is 10, which is the percentage of Hungarians who, according to a new EU survey, ar

发表于:2019-01-16 / 阅读(150) / 评论(0) 分类 2018年NPR美国国家公共电台4月

The problem with GUYS: If you treat them nicely,he says you are in love with him; If you don't,he says you are pround. If you dress nicely,he says you are trying to lure him; If you don't ,he says you are from Kampunc. If you argue with him,he says

发表于:2019-01-17 / 阅读(113) / 评论(0) 分类 白领英语晨读

A bald man took a seat in a beauty shop. How can I help you? asked the stylist. I went for a hair transplant, the guy explained, but I couldn't stand the pain. If you can make my hair look like yours without causing me any discomfort, I'll pay you $5

发表于:2019-01-22 / 阅读(120) / 评论(0) 分类 英语笑话(MP3+文本)

Simon was an inveterate fisherman, well known for exaggerating the size of the one that got away. But there came a day when he actually caught two enormous flounders. He immediately invited a few friends over to dine, then tried to figure out how bes

发表于:2019-02-02 / 阅读(135) / 评论(0) 分类 趣味英语

By Paul Sisco Washington 01 November 2007 The World Health Organization reports in its latest study 300 million adults around the world are considered obese, and that it is a problem not only in the industrialized nations but elsewhere as well. At th

发表于:2019-02-04 / 阅读(142) / 评论(0) 分类 VOA常速英语2007年(十一月)

Employee: The stress my boss puts me under is killing me. I have migraines(偏头疼), my blood pressure is going through the roof, I can't sleep at night, I just found out that I have an ulcer(溃疡), and as long as I stay in this job, the on

发表于:2019-02-06 / 阅读(137) / 评论(0) 分类 趣味英语

A man was at the doctor's office. Every time I drink a cup of coffee, Doctor, I have a stabbing pain in my right eye. What should I do? he asked . Take the spoon out of your cup. answered the doctor. Notes: (1) stabbing adj.刺痛的(2) spoon n.匙子

发表于:2019-02-08 / 阅读(155) / 评论(0) 分类 趣味英语

有些词汇美国人每天都要讲,而且还可能要讲上无数遍。他们在办公室里用,在饭馆里,商店里以及其他任何场合都用这些词汇。所以有的人认为它们都成了老调,听都听腻味了。今天我们要

发表于:2019-02-12 / 阅读(160) / 评论(0) 分类 美国习惯用语

One day in the Garden of Eden, Eve calls out to God, Lord, I have a problem!What's the problem, Eve?Lord, I know you've created me and have provided this beautiful garden and all of these wonderful animals, and that hilarious comedy snake, but I'm ju

发表于:2019-02-13 / 阅读(143) / 评论(0) 分类 趣味英语

How to Solve Every Problem What makes solving problems difficult is that we often dont know everything that we need to solve in order to be able to move forward. Every problem you face will always present you with at least 3 obstacles. To be able to

发表于:2019-02-16 / 阅读(141) / 评论(0) 分类 阅读空间
学英语单词
acknowing
Adelavin
al planarization
allowable load capacity
americare
analysis line pair
andinus
Andira inermis
antiflicker
attitude of inadequacy
aziridinol
bar double-x
base cylinder of involute helicoid worm
be inflated with pride
Beverly Hills
black-and-white cine positive film
Blaydon Races
bola tie
borne system
cerebratmon
characterstring constant
civory
coldens
common dayflower
comparison of prices
compositional heterogenity
congenital anodontia
counterdrive
del credere agreement
drum sorter
Edsbruk
egesting
elliptic cyclic group
ethics of marketing
Excoecaria yunnanensis
factor of ignorance
fire bells
functionalist theory of emotion
gebhart
hoo-boy
inclusion reagent
intermediate scion
intervenable
itemisation
Josephson tunneling
knob-ends
Ksour, Mts.des
Kwenge
latifolius
Lime disease spirochete
limit of validity
malli
Marlboro Man
marriage concept
memory register storage device
menziesias
Metho-proptryne
missing pulse
model of fissuration
MUF observed value
Mugil liza
multiminiprocessor
n.wt
natural colouring matter
nealing
nonaccommodated
nonerections
Novangle
number of replications
ophiurioids
orthoprenia
papyrotype
perceptual audio coding
phonation
picture space
pinera
planetary drive
pugging screw
pungent taste
put the phone down
radicinin
reaction dynamometer
reactor trip signal
Rosa odorata
rotary grain grader
route forecast (rofor)
sampling converter
sampling function
scoresheet
Shiriha-misaki
slaughterage
sono elasticity
sp. nov. in.
strongly continuous mapping
suspend/resume indicators
technical and economic index
thermo-siphon cooling
threaded feature
tool cutting edge plane
treehorn
tritonoturris cumingi
Ucar