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In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produc

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1. Officials in Texas are taking the polygamist sect case to the state's highest court. Today they file their appeal of a lower court ruling which stated officials didn't have the right to take more than 400 kids from their parents. 2. Crews in Colo

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文本：Fair enough, but in the longer term, the figures aren't going to be dominated by the likes of you and me. It's the birth of new people that will have the largest effect on future statistics. And here's where it gets interesting. For a long t

北师大初中英语九年级（全一册）--Unit 4-16

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考研英语长难句讲解 第38期

17. In thre idealized version of how science is done, facts about he world are waiting to be observed and collected by objectives researcherswho used the scientific method to carry out their work. 【分析】复合句。句子主干为 facts...are w

英语名篇名段背诵精华41 The lowest animal

The lowest animal Man is the only animal that robs his helpless fellow of his country-takes possession of it and drives him out of it or destroys him. Man has done this in all the ages. There is not an acre of ground on the globe that is in possessi

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Matariki is the Maori New Year. Just before dawn this morning, the seven stars of the Pleiades which Maori call Matariki, appeared in the sky. Some Maori iwi celebrate Matariki after the next full moon or at the next new moon. For Maori, it was a tim

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I do not wish to be observed, complained the cob. 我不希望被谁观察，雄天鹅抱怨， I did not travel all this immense distance into the heart of Canada to be observed. 我可不是为了被谁观察才从大老远的地方赶到加拿大腹

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Psychologically defined, concentration is the process of centering one's attention over a period of time. In practical application, however, concentration is not as simple to deal successfully with as the definition may imply. For this reason, it is

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Unit 4. Approaching Culture. Part 1. Warming up. A. Keywords. gift, luck, Vocabulary. symbol, even,set, Argentina. People in all countries enjoy gifts, sometimes the meanings are different in different cultures. Listen to the following dialogues and

美联社新闻一分钟 2007-04-02

1. Former cabinet member and Wisconsin Governor Tommy Thompson made it official today he is running for president in no wait. He calls himself the reliable conservative. Thompson was Health and Human Services Secretary in President Bush's first term

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A new study from the Florida State University suggests that inadequate amount of stimulation in the workplace and an unclean working environment can both affect the brain functions of employees on the long run. 佛罗里达州立大学的一项新研究

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Thanksgiving is a holiday celebrated in much of North America, generally observed as an expression of gratitude, usually to God. The most common view of its origin is that it was to give thanks to God for the bounty of the autumn harvest. In the Unit

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【生词预览】 plow 耕地， gallop 飞奔， veterianarian 兽医 【笑话原文】 ASmartHorse Therewasafarmerwhofellandbrokehishipwhilehewasplowing,andhishorseimmediatelygallopedfivemilestothenearesttownandreturned,carryingadoctoronhisback.

Moody's downgrades Greece to lowest rating

LONDON/NEW YORK, March 2 (Xinhua) -- The rating agency Moody's on Friday cut the sovereign credit rating of Greece to the lowest level, saying the country's default risk was high. Moody's downgraded Greece long term sovereign credit rating from Ca to

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Over the years I have observed that some attributes of leadership are universal and are often about finding ways of encouraging people to combine their efforts, their talents, their insights, their enthusiasm and their inspiration to work together. Q

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What this means in practice is that you can never predict where an electron will be at any given moment. You can only list its probability of being there. In a sense, as Dennis Overbye has put it, an electron doesnt exist until it is observed. Or, pu

双语有声阅读：科学理论

Scientific Theories In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is