硒化镨(IV) {二硒化镨}

-The joyous Mid-Autumn Festival was celebrated on the fifteenth day of the eighth moon, around the time of the autumn equinox(秋分). Many referred to it simply as the Fifteenth of the Eighth Moon. This day was also considered as a harvest festi

发表于:2019-01-07 / 阅读(96) / 评论(0) 分类 阅读空间

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发表于:2019-01-10 / 阅读(135) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(203) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(228) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(156) / 评论(0) 分类 外研社新标准高中英语选修9

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发表于:2019-01-10 / 阅读(150) / 评论(0) 分类 外研社新标准高中英语选修9

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发表于:2019-01-10 / 阅读(332) / 评论(0) 分类 外研社新标准高中英语选修9

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发表于:2019-01-10 / 阅读(339) / 评论(0) 分类 外研社新标准高中英语选修9

This is the VOA Special English Health Report. A migraine headache can cause disabling pain. People may not feel back to normal for hours or even days. Migraine headaches are most common among young adults and middle-aged people. In the United State

发表于:2019-01-11 / 阅读(78) / 评论(0) 分类 VOA慢速英语2009年(三)月

By Nico Colombant Abidjan 30 March 2006 The U.N. helicopter sets off from Monrovia airport, Liberia, March 29, 2006, with captured former Liberian President Charles Taylor, en route to Sierra Leone Li

发表于:2019-01-13 / 阅读(177) / 评论(0) 分类 2006年VOA标准英语(三月)

By Meredith Buel Washington 30 January 2007 A new report by an independent policy and research organization says Iraq is rapidly descending into an all-out civil war and urges U.S. officials to begin planning how to contain such a conflict to avoid w

发表于:2019-01-13 / 阅读(95) / 评论(0) 分类 2007年VOA标准英语(一月)

U.S. President Barack Obama says he seeks unity at the G-20 economic summit in London, and a new arms deal with Russia. It was a busy day of diplomacy for Mr. Obama as he launched his first overseas trip as president. Britain's Prime Minister Gordon

发表于:2019-01-13 / 阅读(91) / 评论(0) 分类 VOA标准英语2009年(四月)

By Sonja Pace Heiligendamm 05 June 2007 President Bush is in the German Baltic Sea resort of Heiligendamm for the three-day summit of the G-8 group of the world's leading industrial nations. The summit opens Wednesday amid protests and policy differe

发表于:2019-01-16 / 阅读(131) / 评论(0) 分类 2007年VOA标准英语(六月)

By Anjana Pasricha New Delhi 09 March 2006 In India, the holy Hindu city of Varanasi has bounced back to normal two days after it was hit by deadly bomb blasts. An unknown Muslim militant group in Kas

发表于:2019-01-26 / 阅读(187) / 评论(0) 分类 2006年VOA标准英语(三月)

EDUCATION REPORT - Learning Disabilities, Part 4: Dyspraxia By Nancy Steinbach Broadcast: Thursday, February 26, 2004 This is Steve Ember with the VOA Special English Education Report. People who have

发表于:2019-01-30 / 阅读(135) / 评论(0) 分类 教育与新闻

This is Search Engine Optimization Explained by Common Craft. 本期介绍搜索引擎优化。 Imagine for a minute that youre a librarian, but not a normal one. Youre a librarian for every book in the world. 假设你是名超级图书管理员,管

发表于:2019-02-05 / 阅读(78) / 评论(0) 分类 英语万花筒

By David Gollust Washington 07 June 2007 Leading human rights groups Thursday called on the U.S. government to account for terrorism suspects they believe were detained by U.S. authorities abroad but whose whereabouts are now unknown. The Bush admini

发表于:2019-02-07 / 阅读(115) / 评论(0) 分类 2007年VOA标准英语(六月)

By Anya Ardayeva Moscow 14 November 2006 watch Russian Nationalism Hundreds of ultra-nationalists and far-right demonstrators rallied in the Russian capital a week ago despite a ban imposed on their gathering by the city's authorities. The march fol

发表于:2019-02-07 / 阅读(195) / 评论(0) 分类 2006年VOA标准英语(十一月)

By Al Pessin Washington 14 March 2006 Defense Secretary Donald Rumsfeld says the U.S. ambassador to Iraq has told him the country's rival political leaders are talking more directly to each other, and

发表于:2019-02-11 / 阅读(180) / 评论(0) 分类 2006年VOA标准英语(三月)