[美国英语]北美印第安人战斗时的呐喊声

各位朋友好!在上一讲中,我们讲了调控市场供求关系的一个重要因素,就是:price - 价格。 我们今天要谈的话题是 efficiency - 效率。 经济学家认为,

发表于:2018-12-26 / 阅读(81) / 评论(0) 分类 实用英语

[ti:UNIT 7 Know Our World Coming! Lesson 49: Let's Learn Geography!] [0:00.291]UNIT 7 [0:02.469]Lessons 49~56 Lessons 49~56 [0:05.445]Know Our World [0:07.187]You Will Learn 你会学到 [0:08.930]Functions 功能 [0:10.018]Talking About Numbers 谈论

发表于:2019-01-09 / 阅读(232) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

Russian President Dmitri Medvedev has signed decrees granting formal recognition to the Georgian breakaway regions of Abkhazia and South Ossetia. But VOA Moscow correspondent Peter Fedynsky reports analysts say the move could promote separatism in R

发表于:2019-01-13 / 阅读(50) / 评论(0) 分类 VOA标准英语2008年(八月)

Geophysicist Probes Ocean's Secrets Today, Pitman is a distinguished professor of geophysics at Columbia University, and the recipient of many of his fields most coveted honors. Even though he is now in his 80s, Pitmans animated manner makes it easy

发表于:2019-01-13 / 阅读(97) / 评论(0) 分类 VOA标准英语2012年(一月)

KELLY MCEVERS, HOST: We're going to hear about something called geofencing. You might know about it. But if you don't, it's wireless technology that tracks mobile devices entering and exiting a specific area. Up to this point, it's mostly been used b

发表于:2019-01-16 / 阅读(58) / 评论(0) 分类 2017年NPR美国国家公共电台7月

U.S. President George Bush says Russia must not lay claim to the breakaway Georgian republics of South Ossetia and Abkhazia. VOA White House Correspondent Scott Stearns reports, Mr. Bush says all Russia forces must leave Georgia. Russia says there i

发表于:2019-02-06 / 阅读(48) / 评论(0) 分类 VOA标准英语2008年(八月)
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