单词：pyrrol cell
单词：pyrrol cell 相关文章
By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The
VOA2003（下）-环境与健康
By Sonja Pace London 30 June 2007 British police officers walk past tourists in the pouring rain in central London, 30 Jun 2007 London is on alert - police have stepped up patrols and a search is under way for a man seen running from a Mercedes car
2007年VOA标准英语（六月）
[ti:] [ar:] [al:] [by:] [00:01.00] Late At Night, Do You Turn Off Your Cell Phone? 今夜不关机 [00:08.22]Today, my friend asked me a question. [00:11.17]At night, do you turn off your cell phone? [00:14.78]If you dont, whom do you leave it on for
温馨夜读
For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea
国家地理2008年
The girl would turn her cell phone off and put it by her photo on the desk everynight befor going to bed. This habit had been with her ever since she bought the phone. The girl had a very close boyfriend,when they couldn't meet ,They would either cal
每天一点英文
By Nancy-Amelia Collins Manila 27 February 2006 Philippine President Gloria Macapagal Arroyo smiles during the round table discussion with her economic team at Malacanang Palace in Manila Philippine p
2006年VOA标准英语（二月）
By Carol Pearson Washington 16 April 2007 Watch Diabetes report Type 1 diabetes can affect anyone but it usually starts in people younger than 30. It is a lifelong disease, and there is no cure. But doctors recently tested a stem cell therapy that a
2007年VOA标准英语（四月）
By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As
2007年VOA标准英语（九月）
By Sabina Castelfranco Rome 11 April 2006 This March 7, 2005 file photo released by Italian police shows a recent identity at left, and an older one at right, of Bernardo Provenzano Italian police hav
2006年VOA标准英语（四月）
By Barry Brown Toronto 03 June 2006 Military-style security was arrayed outside a courthouse near Toronto on Saturday as 17 terrorist suspects were brought to face charges they planned to detonate thr
2006年VOA标准英语（六月）
By Sonja Pace London 02 July 2007 British police have arrested two more men in connection with attempted car bombings in central London and Glasgow Scotland. The manhunt continues for additional suspects. VOA's Sonja Pace reports from the British cap
2007年VOA标准英语（七月）
By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme
VOA标准英语2008年（五月）
By Phil Mercer Sydney 03 July 2007 Queensland Premier Peter Beatty speaks at a press conference in Brisbane, 03 July 2007 Australian police are interviewing two men in connection with a plot to detonate car bombs in Britain and have detained one of t
2007年VOA标准英语（七月）
By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app
2007年VOA常速英语（十月）
By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo
VOA常速英语2008年（四月）
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
趣味英语
By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia
VOA常速英语2007年（十二月）
WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi
英语新闻
Why You Shouldn't Leave Nude Photos of Yourself on Your Cell Phone The 23-year-old woman lost her cell phone in a restaurant parking lot. By the next morning, someone was texting nude photos of her to everyone. As regular readers have learned many ti
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