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(71) / 评论(0) 分类 数学英语

Broadcast: May 12, 2003 By Jerilyn Watson VOICE ONE: American states are struggling with their worst financial problems in about sixty years. I'm Steve Ember with Phoebe Zimmermann. Today we report ab

发表于:2018-12-18 / 阅读(53) / 评论(0) 分类 VOA2003(上)-美国故事

Todd: OK. Hey, hello! Tim: Hey, how's it going? Todd: Doing pretty good. Could you introduce yourself please? Tim: Yeah, I'm Tim Peterson. I'm from Oregon in the United States. Todd: Oh, nice. You're from Oregon. Tim: Yeah. Todd: OK, and were you bor

发表于:2019-01-02 / 阅读(58) / 评论(0) 分类 英语访谈对话

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(71) / 评论(0) 分类 Scientific American(十)月

WASHINGTON, Jan. 6 (Xinhua) -- Two packages detonated(爆炸) on Thursday at two government buildings in the U.S. state of Maryland, but caused no serious injuries, state authorities said. One package detonated at the Jeffrey Building in Annapoli

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 英语新闻

今天我们要学的词是be bound to。 Be bound to, 一定会。巴勒斯坦向联合国提交申请,希望成为正式会员国。但是, Analysts say the Palestinian bid is bound to fail because the United States has threatened to use its ve

发表于:2019-02-04 / 阅读(39) / 评论(0) 分类 英语单词荟萃