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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(143) / 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(197) / 评论(0)

Scientific American(十)月

VOA标准英语2011--Foreign Nationals Evacuated from Egypt

Foreign countries are working hard to get their nationals out of Egypt as anti-government protests rage on. The U.S. State department says it has already flown over 1,000 Americans out of Egypt and plans to evacuate over 1,000 more in the next couple

发表于:2019-01-09 / 阅读(96) / 评论(0)

VOA标准英语2011年(二月)

2006年VOA标准英语-Indonesia to Evacuate Thousands from Mud Flow Z

By Chad Bouchard Jakarta 27 September 2006 Indonesia is to resettle thousands of people whose homes have been engulfed by mud surging from a gas exploration site. Efforts to stop the flow of mud have failed. ---- Susilo Bambang Yudhoyono (file photo

发表于:2019-01-12 / 阅读(211) / 评论(0)

2006年VOA标准英语（九月）

学个词Learn a Word 第282期 Evacuate

今天我们要学的词是evacuate。 Evacuate, 是指撤离危险地带。Passengers evacuated the train due to a fire on board, 由于火车起火，乘客全部下车。Students evacuated their classrooms because of a bomb threat, 由于炸弹威

发表于:2019-01-31 / 阅读(103) / 评论(0)

英语单词荟萃

2006年VOA标准英语-Evacuation Not Option For Many Foreign National

By Challiss McDonough Beirut 18 July 2006 Western nations are moving to evacuate thousands of their citizens from Lebanon as Israel's air strikes there intensify. The airport and seaports have been closed after being repeatedly bombed, and most of t

发表于:2019-01-31 / 阅读(163) / 评论(0)

2006年VOA标准英语（七月）

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