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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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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

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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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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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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

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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