单词：retinal cone cell
单词：retinal cone cell 相关文章
Grasp the 1) cone with the right hand firmly but gently between thumb and at least one but not more than three fingers, two-thirds of the way up the cone. Then 2) dart swiftly away to an open area, aw
疯狂英语2002年
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
[00:00.00] Unit 4 In my classroom [00:05.20]A Point and say. [00:09.56]Look at the board.Eleven,twelve,thirteen,fourteen,fifteen. [00:29.34]Sixteen,seventeen, eighteen,nineteen, twenty. [00:43.39]Look at the board.Eleven,twelve,thirteen,fourteen,fift
小学英语（深港版）第三册
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
Two studies of perception: the retinas of depressed people are far worse at responding to contrast; people doubt statements more when the speaker has a foreign accent. A couple of studies on perception. First, theres now visual data to back up the id
60秒科学
A couple of studies on perception. First, theres now visual data to back up the idea that everything looks kinda gray when you feel blue. Researchers examined how the retina responds to different black-and-white contrast situations. They did the test
Scientific American(七)月
When people suffer from a migraine, they often retire to a cave-like dark room. But exactly why does bright light hurt the migraine sufferer? A possible answer was published this week in the online issue of journal Nature Neuroscience. A big clue was
Scientific American(一)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 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 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）
TOKYO, Feb. 1 (Xinhua) -- Japan's Ministry of Health, Labor and Welfare on Wednesday approved transplant of retinal cells to treat patients using induced pluripotent stem (iPS) cells derived from another person. According to Japan's public broadcaste
英语新闻
a dumb boy 笨小孩 A young boy enters a barber shop and the barber whispers to his customer ..., This is the dumbest kid in the world. Watch while I prove it to you. The barber puts a dollar bill in one hand and two quarters in the other, then call
趣味英语
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
Every morning at approximately 8:48 a.m., I pass itthe brick building that I visited many times as a child and that once seemed so grand, now a miniature playhouse in my mind. 每天早晨，大约8点48分的时候，我都会路过那栋砖砌的建筑
英语美文
Idiom: Run before you can walk( be patient ) Hit the book： Retinal detachment Macular degeneration Cataract Light sensitivity Blurry Side effect Randomly Respectively Optical And high myopiawhere the eyeball stretches and becomes too longisn't just
趣味青春英语
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）
本文选自美国作家Jim Willis的畅销书《Pieces Of My Heart-----Writings Inspired by Animals and Nature》，该书以自述的形式讲述了一只家犬对昔日主人的真情告白。当年作者用七千美元以全版广告的形式在报
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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