[医] 费拉塔氏细胞, 成血细胞

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

发表于:2018-12-01 / 阅读(315) / 评论(0) 分类 VOA2003(下)-环境与健康

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

发表于:2018-12-30 / 阅读(240) / 评论(0) 分类 国家地理2008年

My real biological mother left me in a basket with me and my sister saying that we were twins and she waited to make sure that we were safe and then my mom right now Betsy, she came to get me in China to adopt me and she took me back to America as, a

发表于:2018-12-30 / 阅读(199) / 评论(0) 分类 国家地理2007年

King Tut's Tough Life New analysis of the mummy of King Tut, published in the Journal of the American Medical Association, shows that the boy king had severe bone disease and malaria. Christopher Intagliata reports The Journal of the American Medical

发表于:2019-01-02 / 阅读(251) / 评论(0) 分类 60秒科学

Three-dimensional cell phones and batteries that last much longer are just two of the techonogies that could become commonplace in the next few years. For the fifth year, IBM has looked at the horizons of research, picked five technologies and announ

发表于:2019-01-07 / 阅读(209) / 评论(0) 分类 VOA标准英语2011年(一月)

BEIJING, March 25 (Xinhua) -- Datang International Power, a listed unit of China Datang, a major Chinese power producer, said Sunday its net profit fell 22.78 percent year-on-year to 1.91 billion yuan (303.2 million U.S. dollars) due to rising therma

发表于:2019-01-07 / 阅读(236) / 评论(0) 分类 英语新闻

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

发表于:2019-01-11 / 阅读(222) / 评论(0) 分类 2007年VOA标准英语(九月)

By Naomi Schwarz Freetown 30 August 2007 In Sierra Leone's presidential election, electricity has become an important campaign issue. In the crowded capital Freetown residents can go weeks without power, but some of the city's youth, faced also with

发表于:2019-01-13 / 阅读(222) / 评论(0) 分类 2007年VOA标准英语(八月)

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

发表于:2019-01-13 / 阅读(199) / 评论(0) 分类 VOA标准英语2008年(五月)

New Alzheimer's Research Raise Hope for Treatment, Cure Scientists working to unravel the mysteries of Alzheimer's disease are excited by two recent studies. Both provide important new insights on how the disease spreads through the brain. Guy Eakin

发表于:2019-01-14 / 阅读(218) / 评论(0) 分类 VOA标准英语2012年(二月)

我们今天要学几个由hold这个词为主的习惯用语,hold常用来表示用手拿住或者抓住,今天要学的第一个习惯用语是:hold on to one's hat。 大家都知道hat是帽子,hold on to one's hat这个习惯用语出现在

发表于:2019-01-14 / 阅读(236) / 评论(0) 分类 美国习惯用语

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(321) / 评论(0) 分类 60秒科学

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

发表于:2019-01-31 / 阅读(230) / 评论(0) 分类 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

发表于:2019-01-31 / 阅读(209) / 评论(0) 分类 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

发表于:2019-02-04 / 阅读(375) / 评论(0) 分类 英语新闻

By Amanda Cassandra New York 09 November 2006 Movie star Robert Redford's Sundance Film Festival is teaming up with global cell phone operators to bring short films to cell phones to give people around the world access to independent films. Robert R

发表于:2019-02-05 / 阅读(224) / 评论(0) 分类 2006年VOA标准英语(十一月)

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

发表于:2019-02-07 / 阅读(317) / 评论(0) 分类 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

发表于:2019-02-17 / 阅读(246) / 评论(0) 分类 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

发表于:2019-02-18 / 阅读(280) / 评论(0) 分类 英语新闻

Born Helena Jane With a restless soul She moved west to California Became a Center-Fold But once you change your name Well the pieces fall Now she hardly recognizes herself at all And there's never any rain when you want it A hollow little game and y

发表于:2019-03-11 / 阅读(236) / 评论(0) 分类 音乐咖啡厅
学英语单词
Adieu, C.
Anderbergite
annealing welds
anthoinite
anti-saturated logic circuit
arqule
balanced vortex type combustion chamber
black strip
block transaction
blowing iron
blowoff line
buoyant deck chair
cappadocias
Cervione
Chasohuil
clipping
cogentin
Colombian gold
conservation of absolute angular momentum
contrasuggestibility
cryotemperature
degenerative stabilizer
dipping height
dmes
drumbeat
duris
effective sales
entoria ishigakiensis
enveloping worm
exploy
extortionate credit transaction
facing attachment
firemanic
fletries
foilborne operation
folding wing
fuel basket
graphite body
hackney horse
hydrous
hyothyroid ligament
investigar
kanamycins
Khasis
Kobyayskiy Rayon
kymographies
lilywhite
logical quotation
look like a drowned rat
loss from devaluation
mahoning
maximum crest
menndez
message planning
miquelets
mooches off
mylophore
Naprosine
national metric study conference
navazio
non-financial reward
nonfraternity
opti-
Paloduro
panado
permanent of a square matrix
permatan
perrymen
Phuong Hoang, Dao
politicalizes
porous chromium (electro)plating
prescission
program-initialization
Prokhladnaya
ptereleotris microlepis
quantisty
queue table
reader-writer
repeat the same
reservoir water loss
robot problem
rrms
semimembranous muscle
shitting a brick
snowperson
solar ultraviolet reference spectra
spasmocyclon
test verification report
tidal amplitude
transformation definition language
transportation average
tropical chlorosis
unpremultiplied
unstylishness
wetting combustion method
wideband channel
width of letter
winceys
wool-combing
yellow mottle
zenicks