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用Mp3背六级单词053

timid knit deviate distort sting Jupiter reign mute fro currency valve identical lash clamp dean rebuke lattice representation enroll retort wretched essence subdivide

发表于:2018-12-01 / 阅读(94) / 评论(0)

用Mp3背六级单词

数学英语 23 What are the Range and Standard Deviation?

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(72) / 评论(0)

数学英语

SSS 2011-10-05

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(72) / 评论(0)

Scientific American(十)月

经济学人157:高耸的美丽

Technology Catalog 技术前沿 Towering Beauty 高耸的美丽 A new way of transmitting electricity may soon be coming to a field near you 输电新法可能很快推出 A PYLON is supposed to be a beautiful thing. In ancient Egypt, pairs of taperi

发表于:2019-01-26 / 阅读(71) / 评论(0)

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