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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(74) / 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

人生的十大法则 |上|

1. You will receive a body. You may like it or hate it, but it will be yours for the entire period. 1.你将拥有一个躯体。你可以喜之也可以恶之，但它毕生都会属于你。 2. You will learn lessons. You are enrolled in a full-ti

发表于:2019-01-08 / 阅读(50) / 评论(0)

励志英语

人生的十大法则

the rules for being human 1. You will receive a body. You may like it or hate it, but it will be yours for the entire period. 1.你将拥有一个躯体。你可以喜之也可以恶之，但它毕生都会属于你。 2. You will learn lessons. You

发表于:2019-02-03 / 阅读(40) / 评论(0)

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The Amazing Secret Behind All Habits

The Amazing Secret Behind All Habits 21 days for a habit to sink in Habits must have positive reinforcement You must go cold turkey for a real habit to sink in Have you ever heard these myths about habits? They may not be necessarily wrong, but they

发表于:2019-02-07 / 阅读(62) / 评论(0)

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Are You Ready for 3-D Everything?

Are You Ready for 3-D Everything? If those monsters pissing off Sam Worthington this weekend have anything to say about it, we'd better prepare for Snooki, Scorsese, and those damn teenage vampires jumping straight out at a depraved American curiosit

发表于:2019-02-18 / 阅读(100) / 评论(0)

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brake-operating spindle

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