经济:对伯纳德•麦道夫的保释听证会今日取消
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化学的历史
化学的历史The History of Chemistry Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But c...
价格的定义
价格的定义The Definition of "Price" Prices determine how resources are to be used. They are also the means by which products and services that are in limited supply are rationed ...
社会:医学家呼吁关注年轻人的死因
社会:医学家呼吁关注年轻人的死因An international team of doctors and scientists is calling for more focus on the causes of death among young people around the world, age between 10 and 24, saying...
美国的变利率房贷(1)
可变利率房贷对众多的业主是否有利呢?In the last few years, many Americans have bought houses with ARMs: adjustable-rate mortgages. These loans usually begin with lower interest rates for the firs...