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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(72) / 评论(0)

数学英语

2007年VOA标准英语-US Marines Sending New Aircraft into Battle

By Jim Fry Washington 03 May 2007 Marine Osprey The U.S. Marines are preparing to send a new tilt rotor aircraft into combat for the first time. And the American manufacturer predicts a civilian version may soon appear over many of the world's citie

发表于:2019-01-07 / 阅读(98) / 评论(0)

2007年VOA标准英语（五月）

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

美联社新闻一分钟 2007-01-19

1. The man accused of kidnapping two young boys has pleaded not guilty in one of the cases. Michael Devlin went before a judge this morning in the case of Ben Ownby. Meantime, the parents of Shawn Hornbeck, the other teen he's accused of kidnapping,

发表于:2019-01-08 / 阅读(111) / 评论(0)

美联社新闻一分钟2007

没有男朋友的20个理由

Manolith, a mens lifestyle online magazine, recently ran the article 20 Reasons Youre Still Single. I was delighted to learn that there are apparently a significant number of men who want a relationship and need advice. The piece addresses a wide ran

发表于:2019-01-08 / 阅读(56) / 评论(0)

英语小短文

电机行业常用的中英文对照

发表于:2019-02-18 / 阅读(83) / 评论(0)

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