脱乙氧基翠雀它灵

2007年VOA标准英语-Paradox of Oil-Rich Nigeria: Little Fuel in a L

By Nico Colombant Port Harcourt 22 May 2007 Refinery workers in one of the main cities in Nigeria's Niger Delta have started a protest action over the last-minute sell-off of refineries by the outgoing government. Meanwhile, motorists line up for hou

发表于:2019-01-11 / 阅读(101) / 评论(0)

2007年VOA标准英语（五月）

2007年VOA标准英语-North Korea Misses Deadline to Shut Down Nuclea

By Luis Ramirez Beijing 14 April 2007 An April 14 deadline has passed and there are no signs that North Korea has begun to shut down its main nuclear reactor, as it agreed to do in February. VOA's Luis Ramirez reports from Beijing, where diplomats ha

发表于:2019-01-11 / 阅读(71) / 评论(0)

2007年VOA标准英语（四月）

2007年VOA标准英语-Nigerians Hope for More Gasoline with New Gover

By Nico Colombant Port Harcourt, Nigeria 29 May 2007 Many Nigerians hope their new president, Umaru Yar'Adua, will urgently address the issue of gasoline scarcity after he is sworn in today. Even though Nigeria is Africa's biggest oil producer, mass

发表于:2019-01-13 / 阅读(81) / 评论(0)

2007年VOA标准英语（五月）

国务院发布十三五生态环境保护规划

The State Council released a national plan on environmental improvements for the 13th Five-Year Plan period (2016-2020), detailing tasks to clean polluted air, water and soil. 国务院日前印发了十三五期间(2016-2020年)改善环境的国家规

发表于:2019-02-08 / 阅读(33) / 评论(0)

英语新闻

万物简史第225期:把铅撵出去(14)

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(59) / 评论(0)

万物简史

TED演讲获奖青少年,科技在行动(1)

If you were going to a restaurant and wanted a healthier option, 如果你去饭店，你想吃得健康一点， which would you choose, grilled or fried chicken? 你会选择哪种食品呢，烤鸡还是炸鸡？ Now most people would answer grill

发表于:2019-02-21 / 阅读(68) / 评论(0)

TED演讲教育篇

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air roll

Aldrosol

balanced incomplete block design (bibd)