单词：quasirandomized
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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(223) / 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(319) / 评论(0)
Scientific American(十)月
Scientific American(十)月
A new study suggests that women who take fish oil supplements lower their risk of breast cancer. Fish oil supplements are a popular way to increase the intake of omega-3 fatty acids, which are thought to have a wide range of beneficial effects, parti
发表于:2019-01-13 / 阅读(229) / 评论(0)
VOA标准英语2010年(七)月
VOA标准英语2010年(七)月