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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(71) / 评论(0) 分类 数学英语

Broadcast: Jan 30 2003 Researchers say there appears to be no link between a substance found in some high-carbohydrate foods and the development of some types of cancer. U.S. and Swedish researchers c

发表于:2019-01-03 / 阅读(62) / 评论(0) 分类 VOA2003(上)-健康之旅

SBA Software generated group Blocking-Acknowledgement message 软件产生的群闭塞证实消息 SCCP Signalling Connection Control Part 信令连接控制部分 SCMG SCCP Management SCCP管理 SCP

发表于:2019-01-03 / 阅读(47) / 评论(0) 分类 电信英语

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

Science and Technolgy 科技 Arthritis and botulinum toxin 关节炎与肉毒杆菌毒素 Something to celebrate 值得庆贺 Botulinum toxin may help relieve chronic pain 肉毒杆菌毒素也许能够帮助缓解慢性疾病的痛苦 ARTHRITIS is t

发表于:2019-01-26 / 阅读(40) / 评论(0) 分类 经济学人科技系列

今天我们要学的词是 reserve。Reserve 做为形容词,是后备的意思。Israel is preparing to mobilize 30,000 reserve troops. 以色列正准备动员三万预备役。The British defense secretary proposed to allow reserve soldiers to

发表于:2019-02-04 / 阅读(45) / 评论(0) 分类 英语单词荟萃