单词：mean of random variable
单词：mean of random variable 相关文章
MobileRestaurantRedefinesGreen,Organic In major metropolitan areas across the United States, food-vending trucks have become a common sight. For the truck merchants selling everything from fresh vegetables to fast food to fancy meals, they are an eas
VOA标准英语2011年(九月)
By Challiss McDonough Cairo 25 June 2007 An Egyptian court has sentenced a nuclear engineer to life in prison for handing over nuclear secrets to Israel. VOA Correspondent Challiss McDonough has more from Cairo. Egyptian engineer Mohammed Sayyed Sabe
2007年VOA标准英语（六月）
歌曲： Elegy 艺人： As I Lay Dying 音乐星级： ★★★ 所属专辑： Frail Words Collapse 发行年代： 2003 风格： Metalcore 介绍： As I Lay Dying 是圣地亚哥的一支Metalcore乐队,乐队于2001年由主唱 Tim Lambesis ,鼓手 Jordan Mancino 和吉他 Evan White 组成,不
金属
The only crime I have ever been connected with was unsuccessful. One summer night I went to bed, leaving my bedroom door open because it was very hot. During the night I was woken up by the sound of a match being struck. For a moment I thought it mus
英语杂谈
Jennifer got off the bus from the university and began walking towards the flat she shared with two other students. On her way she had to buy some food and stopped in one of the shops in the street. It was run by an Asian family, and although the pri
英语杂谈
By Al Pessin Washington 03 April 2006 The U.S. Defense Department says it is possible Iran has made improvements in its missile forces, but a spokesman has also warned that Iran has exaggerated its ca
2006年VOA标准英语（四月）