[网络] 整数密集

by Jason Marshall A few months ago we talked about how to multiply fractions. Now that were comfortable doing this and weve talked about a few applications of multiplying fractions such as how to convert units and how to estimate how fast someone is

发表于:2018-12-07 / 阅读(48) / 评论(0) 分类 数学英语

by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,

发表于:2018-12-07 / 阅读(62) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, Is Multiplication Repeated Addition? we talked about what it really means to multiply two numbers. We found that the conventional meaning of multiplicationrepeated additionbreaks down when multiplying fractions,

发表于:2018-12-07 / 阅读(45) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall Do you frequently find yourself at restaurants with friends fumbling to figure out how to split the bill and calculate the tip? Have you ever resorted to seeking advice from your smart phone? Dont worry, we all have.

发表于:2019-01-02 / 阅读(120) / 评论(0) 分类 数学英语

Premature and low birth weight babies are surviving as never before, thanks to treatments available in neonatal intensive care units. That's mainly true in rich countries. But a new study suggests that these high-tech, high-intensity hospital service

发表于:2019-01-13 / 阅读(45) / 评论(0) 分类 VOA标准英语2010年(十二)月

More than 1,200 intensive care units in 75 countries examined Carol Pearson | Washington, DC 08 December 2009 Researchers found that more than half of the 14,000 patients in the study on that one day, developed infections in intensive care units Stay

发表于:2019-02-12 / 阅读(45) / 评论(0) 分类 VOA标准英语2009年(十二月)