单词：quasipinning
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单词：quasipinning 相关文章
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
发表于:2018-12-07 / 阅读(122) / 评论(0)
数学英语
数学英语
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
发表于:2019-01-08 / 阅读(158) / 评论(0)
Scientific American(十)月
Scientific American(十)月
By David Byrd Rio de Janeiro 13 July 2007 The 15th Pan American Games, a multi-sport Olympic style competition for the Western Hemisphere, open Friday in Rio de Janeiro, Brazil. As VOA's David Byrd reports, the games are part of Rio's plan to bid for
发表于:2019-02-04 / 阅读(128) / 评论(0)
2007年VOA标准英语（七月）
2007年VOA标准英语（七月）