单词：left-handed sequences
单词：left-handed sequences 相关文章
Before you pay big money for caviar, check with two New York City high school students. Brenda Tan and Matt Cost worked with DNA barcoding experts at Rockefeller University and other researchers at the American Museum of Natural History to identify h
Scientific American(十二)月
HEALTH REPORT - Indonesia Passes Vietnam as Nation With Most Bird Flu DeathsBy Caty Weaver Broadcast: Wednesday, August 09, 2006 This is the VOA Special English Health Report. Indonesia Indonesia pass
2006年慢速英语（八）月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th
Scientific American(七)月
by Jason Marshall In the last few articles, weve talked about fractions and percentages, and soon enough well see that these ideas naturally lead us into the world of decimal numbers. But before we head down that path, lets take a quick detour to tal
数学英语
by Jason Marshall In the last article, we began talking about mathematical sequencesin particular, a type of sequence known as an arithmetic sequence. Today, were going to turn our attention to another type of sequence called a geometric sequence. In
数学英语
A married couple, both avid golfers, were discussing the future one night. Honey, the wife said, if I were to die and you were to remarry, would you two live in this house?I suppose so-it's paid for.How about our car? continued the woman. Would the t
趣味英语