音标:[pri:'kælkjjlәs] ;
a. & n.学习微积分前必修的(课程)

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2018-12-04 / 阅读(75) / 评论(0) 分类 英文魔法师字源大挪移

IN THE NEWS - John Kerry Chooses John Edwards for Vice President By Cynthia Kirk Broadcast: Saturday, July 10, 2004 This is Bob Doughty with In the News, in VOA Special English. The Democratic Nationa

发表于:2018-12-07 / 阅读(76) / 评论(0) 分类 教育与新闻

Many teachers and parents have said it, it is sort of a thought ingrained in the American psyche that boys are better than girls at mathematics. But is it true? The lack of women mathematicians, engineers and physicists has often been cited as proof

发表于:2018-12-11 / 阅读(43) / 评论(0) 分类 万花筒2008年

Pre-Teens Enter Universities in Canada, US Jeremy Shuler and Cendikiawan Suryaatmadja, also known as Diki, are starting a new year in school. Both boys are 12 years old. But unlike other children, Diki is studying physics at the University of Waterlo

发表于:2019-01-12 / 阅读(37) / 评论(0) 分类 2016年VOA慢速英语(九)月

By Kurt Achin Seoul 25 February 2008 The former Seoul mayor who swept December elections in South Korea is getting used to his new title: Mr. President. Lee Myung-bak has taken his oath of office in a formal ceremony in the South Korean capital. VOA

发表于:2019-01-31 / 阅读(56) / 评论(0) 分类 VOA常速英语2008年(二月)

今天我们要学的词是 pre-order. Pre-order 预购。iPhone5问世了。The iPhone5 went on pre-order just after midnight Pacific time last Friday. iPhone5 于美国西部时间上星期五凌晨12点一过开始预售。Roughly one hour after t

发表于:2019-02-04 / 阅读(64) / 评论(0) 分类 英语单词荟萃