[=mono-benzyl ether of hydroquinone]氢醌单苄醚

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Jefferson Suspends Trade with Europe - Pgm No.34 From VOA Learning English, welcome to The Making of a Nation, our weekly program of American history for people learning English. Im Steve Ember. Last time, we talked about the presidential election of

发表于:2019-01-12 / 阅读(49) / 评论(0)

2013年VOA慢速英语(六)月

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Jefferson Arranges Louisiana Purchase - Pgm No.33 From VOA Learning English, welcome to The Making of a Nation, our weekly program of American history for people learning English. Im Steve Ember. Weve been discussing the presidency of Thomas Jefferso

发表于:2019-01-12 / 阅读(72) / 评论(0)

2013年VOA慢速英语(六)月

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Jefferson Moves to Cut Debt, Spending - Pgm No. 32 Learning English, welcome to THE MAKING OF A NATION, our weekly program of American history - for people learning English. I'm Steve Ember. In our last program, we talked about President Thomas Jeffe

发表于:2019-01-12 / 阅读(59) / 评论(0)

2013年VOA慢速英语(五)月

VOA标准英语2014--Obama to Visit Malaysia Amid MH370 Criticisms 奥巴马访问深陷MH370漩涡的马来西亚

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The Buk missile that downed flight MH17 was brought from Russia and fired from a region in eastern Ukraine controlled by pro-Russian rebels, according to a report of the Joint Investigation Team (JIT) released. 根据日前公布的一份联合调查团

发表于:2019-02-04 / 阅读(52) / 评论(0)

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Different laws around the world have historically affected payouts following air disasters. Zhu Ziqin, a professor from China University of Political Science and Law, says an international treaty known as the Montreal Convention stipulates that airli

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compressor exit temperature

conjugate dual number