准稳定状态;似稳态;拟稳状态

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(209) / 评论(0) 分类 数学英语

Centre County, Pennsylvania, as its name implies, is located in the dead center of this diverse heartland state in the northeastern United States. It's home to liberal-leaning State College, as well as large numbers of older retirees and working poo

发表于:2018-12-08 / 阅读(198) / 评论(0) 分类 VOA标准英语2008年(十月)

Broadcast: May 12, 2003 By Jerilyn Watson VOICE ONE: American states are struggling with their worst financial problems in about sixty years. I'm Steve Ember with Phoebe Zimmermann. Today we report ab

发表于:2018-12-18 / 阅读(170) / 评论(0) 分类 VOA2003(上)-美国故事

Adria: So Shiloh, we're talking about politics right now and there's something in the US called red and blue states, could you explain a little bit what they are? Shiloh: Yeah Adria, a red state in the United States is a state which is dominated by R

发表于:2018-12-25 / 阅读(188) / 评论(0) 分类 原版英语对话1000个

Ordering more stationary A: Okay, then, Mary. We need 10 more loose-leaf binders, five pounds of heavy duty white paper, and what else did I say? B: Two boxes of transparencies for the over-head machines. A: Right. And Id like one of those new electr

发表于:2018-12-25 / 阅读(197) / 评论(0) 分类 办公室英语口语

第66期:In a Stationary Store Y:I'd like to see that pen,please. Y:我想看一看那支笔。 X:You mean fihis one? X:您说这支吗? Y:No,the other one in the brown case. Y:不是,是棕色盒子的那一支。 X:Oh,this one.Here. X:哦,这

发表于:2018-12-26 / 阅读(212) / 评论(0) 分类 出国旅游口语一本通

Todd: OK. Hey, hello! Tim: Hey, how's it going? Todd: Doing pretty good. Could you introduce yourself please? Tim: Yeah, I'm Tim Peterson. I'm from Oregon in the United States. Todd: Oh, nice. You're from Oregon. Tim: Yeah. Todd: OK, and were you bor

发表于:2019-01-02 / 阅读(186) / 评论(0) 分类 英语访谈对话

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(304) / 评论(0) 分类 Scientific American(十)月

IN THE NEWS - Bush Discusses Middle East Policy in State of the Union Speech By Jerilyn Watson Broadcast: Saturday, February 05, 2005 This is Steve Ember with In the News in VOA Special English. Ameri

发表于:2019-01-11 / 阅读(193) / 评论(0) 分类 教育与新闻

WASHINGTON, Jan. 6 (Xinhua) -- Two packages detonated(爆炸) on Thursday at two government buildings in the U.S. state of Maryland, but caused no serious injuries, state authorities said. One package detonated at the Jeffrey Building in Annapoli

发表于:2019-01-11 / 阅读(214) / 评论(0) 分类 英语新闻

By Jim Malone Washington 21 March 2008 The U.S. State Department said Friday that the passport files of all three remaining presidential candidates had been improperly breached by contract workers. The revelation prompted an apology from Secretary of

发表于:2019-01-12 / 阅读(247) / 评论(0) 分类 VOA标准英语2008年(三月)

The State Department confirmed Friday that Secretary of State Condoleezza Rice will go to the Middle East next week in another effort to advance Palestinian-Israeli peace talks. U.S. officials deny trying to rush the process. VOA's David Gollust rep

发表于:2019-01-13 / 阅读(176) / 评论(0) 分类 VOA标准英语2008年(八月)

STEVE INSKEEP, HOST: More states than ever are funding preschool. That is according to a new report from the National Institute for Early Education Research or NIEER. NPR's Claudio Sanchez reports. CLAUDIO SANCHEZ, BYLINE: Forty-three states plus the

发表于:2019-01-17 / 阅读(183) / 评论(0) 分类 2017年NPR美国国家公共电台5月

By David Gollust State Department 30 October 2007 The State Department said Tuesday that U.S.-hired private security guards accused of killing Iraqi civilians in September may still be subject to prosecution, despite a promise of immunity given by in

发表于:2019-01-21 / 阅读(190) / 评论(0) 分类 2007年VOA常速英语(十月)

By Jeffrey Young Des Moines, Iowa 17 August 2007 Every August, the Midwestern U.S. state of Iowa holds a 10-day-long fair that celebrates agriculture and everything else Iowa has to offer. VOA's Jeffrey Young takes you to the Iowa State Fair. Carniva

发表于:2019-01-31 / 阅读(222) / 评论(0) 分类 2007年VOA标准英语(八月)

By Robert Berger Jerusalem 18 September 2007 US Secretary of State Condoleezza Rice (file photo) U.S. Secretary of State Condoleezza Rice is embarking Tuesday on a two-day visit to Israel and the Palestinian territories. As Robert Berger reports from

发表于:2019-02-04 / 阅读(222) / 评论(0) 分类 2007年VOA标准英语(九月)

By Peter Heinlein Addis Ababa 04 December 2007 Secretary of State Condoleezza Rice is set for talks Wednesday in the Ethiopian capital, Addis Ababa, home of the African Union, to explore peace prospects in conflict zones from Sudan and Somalia to the

发表于:2019-02-04 / 阅读(165) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Meredith Buel Washington 05 December 2007 The U.S. Departments of State and Defense have agreed to a new system of rules designed to increase control over private security contractors working in Iraq. VOA correspondent Meredith Buel reports from W

发表于:2019-02-07 / 阅读(200) / 评论(0) 分类 VOA常速英语2007年(十二月)

The State Department Thursday observed the 10th anniversary of the al-Qaida bombings of the U.S. embassies in Nairobi and Dar es Salaam. Secretary of State Condoleezza Rice said the twin attacks, which killed 229 people, destroyed buildings but not

发表于:2019-02-18 / 阅读(244) / 评论(0) 分类 VOA标准英语2008年(八月)

Students at the Dalian Nationalities University in China have designed a bike washing machine that will wash your clothes while you pedal. The invention is aptly called Bike Washing Machine or BiWa, and it aims to bring health and convenience to our

发表于:2019-02-18 / 阅读(217) / 评论(0) 分类 阅读空间
学英语单词
addle one's head
aeroamphibious
All roads lead to Rome
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Aosta,Valle d'
arveladzes
asterolibertia hiiranensis
at the theatre
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documentize
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Erianthus rufipilus
ethylglycol acetate
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Financial Industry Regulatory Authority
finger-nose tests
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fried chicken meat cake
grooved insulator
had need do something
horse botflies
iff
Italian Peninsula
janus green granule
jet pump throat section
Kattakurgan
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Last Exit to Brooklyn
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malaxated
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moisture excluding efficiency
Morse transmission
moving plates of variable condenser
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National Diet Library
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