[化] 亚硝胺

小公主.A.Little.Princess 02. The diamond mines

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发表于:2018-12-05 / 阅读(126) / 评论(0)

小公主.A.Little.Princess

08：Bernard Ramanantsoa演讲

分集介绍：本集主要是对与会人士致以问候和欢迎，并表示感谢。首先感谢会议组织者，特别提到事先告知成本值得其他同事借鉴，其次感谢各位学者的文稿，再特别感谢公司人士的出席。另

发表于:2018-12-09 / 阅读(258) / 评论(0)

第二届金融与统计学大会

2006年NPR美国国家公共电台一月-My Father Worked the Mines

Marcos Mcpeek Villatoro : My father worked in the coal mines of Kentucky. It was his last job before he retired. After a life moving from one mechanic's shop job to another, this was a real job, said the friend who offered it to him. Sure, it was ri

发表于:2018-12-17 / 阅读(153) / 评论(0)

2009年NPR美国国家公共电台7月

NPR 2010-10-20

The Dow's off more than 200 points, more than 1.75 percent, sliding below the 11,000 mark for the first time in a week. Several factors are apparently rattling investors. China hiked its rates in an attempt to head off rising inflation. The close on

发表于:2018-12-17 / 阅读(62) / 评论(0)

2010年NPR美国国家公共电台10月

【轻松英文阅读】维护和平

You will often find Aki Ra walking quietly through the villages and fields of Cambodia searching the ground. Hes clearing land mines. He buried land mines himself a long time ago. When Aki Ra was a child he was taken from his family by the Khmer Roug

发表于:2018-12-28 / 阅读(42) / 评论(0)

轻松英文阅读

麻省理工学院公开课：单变量微积分03：求导四则运算及三角函数导数

分集介绍：导数，商数，正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(316) / 评论(0)

麻省理工学院公开课：单变量微积分

麻省理工学院公开课：单变量微积分01：导数和变化率

分集介绍：导数，斜率，速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(310) / 评论(0)

麻省理工学院公开课：单变量微积分

DEVELOPMENT REPORT - Clearing Land Mines in Afghanistan

By Jill Moss DEVELOPMENT REPORT - January 21, 2002: Clearing Land Mines in Afghanistan This is the VOA Special English Development Report. Each year, thousands of people are killed or injured by explo

发表于:2019-01-07 / 阅读(59) / 评论(0)

农业与发展

China to halt approvals for small coal mines

BEIJING, Feb. 25 (Xinhua) -- China's safety watchdog said Monday it will no longer approve new coal mines that do not meet production capacity requirements in 2013 in order to ensure work safety. High-gas coal mines with an annual production of less

发表于:2019-01-07 / 阅读(115) / 评论(0)

英语新闻

英语游戏:愚蠢的香肠

[全屏观看] 点击右键- 另存为可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏，它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(166) / 评论(0)

英语对接游戏

VOA标准英语2010-Roots of Peace Turns Mines to Vines in Af

Founder, CEO Heidi Kuhn inspires with her passion of hope and change Eric Bersh | San Rafael, CA 23 April 2010 Heidi Kuhn, founder, CEO of Roots of Peace Grapevines are now flourishing where landmines once poisoned the soil of war-torn countries. Tha

发表于:2019-01-13 / 阅读(55) / 评论(0)

VOA标准英语2010年(四)月

TED演讲:见证现代奴役的照片(10)

This is Manuru. When his father died, 这是Manuru。当他父亲死的时候， his uncle trafficked him to work with him in the mines. 他的叔叔把他卖到自己在工作的这个矿场。 When his uncle died, Manuru inherited his uncle's debt,

发表于:2019-01-18 / 阅读(68) / 评论(0)

TED演讲国际问题篇

TED演讲:石油真正的代价(4)

Now, here you see-of course, as you go further on, 如图所示－当然，当你将视线拉远， these trucks become like a pixel. 这些卡车彷佛图中的小点。 Again, imagine those all back and forth there. 同样地，想象一下这片区域

发表于:2019-01-18 / 阅读(75) / 评论(0)

TED演讲商业篇

万物简史第470期:生命在前进(12)

Gould's book was published in 1989 to general critical acclaim and was a great commercial success. 古尔德的《奇异的生命》于1989年出版，旋即引起议论纷纷，在商业上是个巨大的成功。 What wasn't generally known was tha

发表于:2019-01-29 / 阅读(70) / 评论(0)

万物简史

HEALTH REPORT - New Heart Drug Shows Promise in African Amer

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(100) / 评论(0)

健康与经济

VOA常速英语2007-Kashmir Insurgents Ban Use of Land Mines

By Shahnawaz Khan Srinigar 29 October 2007 The International Committee to Ban Land Mines has been urging nations around the world to ban land mines. While India has resisted the ban because of security issues on its borders, an alliance of insurgents

发表于:2019-01-31 / 阅读(70) / 评论(0)

2007年VOA常速英语（十月）

中国放松煤矿工作日限制

Chinas top planning body has relaxed working day restrictions on its coal mines after reduced output boosted prices, frustrating central planners desire to control both price and supply of the nations most important energy source. 中国最高规划机

发表于:2019-02-05 / 阅读(58) / 评论(0)

英语新闻

China tightens measures on reopening of suspended mines

BEIJING, Nov. 24 (Xinhua) -- China's workplace safety authorities on Saturday required tougher standards on reopening coal mines in production suspension in the wake of a deadly coal mine accident. Some coal mines were ordered to suspend production d

发表于:2019-02-17 / 阅读(57) / 评论(0)

英语新闻

Top political advisor visits exhibitions

BEIJING, Nov. 19 (Xinhua) -- Top political advisor Jia Qinglin on Monday visited two exhibitions showcasing China's sustainable use of mines and charitable deeds of the country's political advisors. Jia, chairman of the National Committee of the Chin

发表于:2019-02-18 / 阅读(76) / 评论(0)

英语新闻

听播客学英语 139 多丽丝·莱辛

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

发表于:2019-02-19 / 阅读(83) / 评论(0)

听播客学英语

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basis of vector space

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