[免疫] 已接触抗原的细胞

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(245) / 评论(0) 分类 VOA2003(下)-环境与健康

U.S. Olympic silver medalist Mary Whipple is one of only two coxswains on the U.S. National Rowing Team who will be competing in the Beijing Olympics. Current Olympic rules allow only one coxswain for the women's team, and another for the men. Coxsw

发表于:2018-12-16 / 阅读(197) / 评论(0) 分类 VOA标准英语2008年(七月)

[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

发表于:2018-12-26 / 阅读(182) / 评论(0) 分类 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

发表于:2018-12-30 / 阅读(192) / 评论(0) 分类 国家地理2008年

Psychology 心理学 Time is not money 时间不等于金钱 Thinking about it makes you a better person, not a worse one 时间观念只会提升人格,绝无裨益 THE love of money, St Paul memorably wrote to his protege Timothy, is the root of

发表于:2018-12-31 / 阅读(167) / 评论(0) 分类 经济学人科技系列

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

发表于:2019-01-02 / 阅读(148) / 评论(0) 分类 每天一点英文

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(174) / 评论(0) 分类 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

发表于:2019-01-13 / 阅读(148) / 评论(0) 分类 VOA标准英语2008年(五月)

India Primed to Invest Abroad Investments by Indian companies in foreign countries have risen sharply as they look for newer markets and resources to fuel a growing economy. For nearly 150 years, Harrisons Malayalam has grown rubber and tea on massiv

发表于:2019-01-14 / 阅读(136) / 评论(0) 分类 VOA标准英语2011年(十月)

Group Identity May Prevent Human Stampedes 心理学家试图解释踩踏事件如何避免 Large gatherings are usually peaceful but sometimes turn unruly with deadly consequences. Last years stampede during the Hajj in Saudi Arabia, for example, le

发表于:2019-01-14 / 阅读(176) / 评论(0) 分类 VOA标准英语2016年(一月)

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

发表于:2019-01-31 / 阅读(173) / 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(161) / 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(315) / 评论(0) 分类 英语新闻

10 Things You Didnt Know About Cell Phones Just when we feel comfortable enough to say wow, cell phones have really changed the way we operate, things get even weirder. Here are 10 facts about cells from around the world that show the scale and style

发表于:2019-02-07 / 阅读(279) / 评论(0) 分类 阅读空间

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(277) / 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(193) / 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(222) / 评论(0) 分类 英语新闻

Watch you mouth. 注意言辞。 Any urgent thing? 有急事吗? Don't over do it. 别太过分了。 Can you dig it? 你搞明白了吗? You want a bet? 你想打赌吗? What if I go for you? 我替你去怎么样? Who wants? 谁稀罕? Follow my no

发表于:2019-02-19 / 阅读(125) / 评论(0) 分类 英语口语

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

发表于:2019-02-24 / 阅读(175) / 评论(0) 分类 阅读空间

表示一日三餐名词的用法 1. 在通常情况下,表示一日三餐的 breakfast, lunch, supper前不用冠词。如: Breakfast is served until 9 a.m. 早餐一直供应到上午9点。 Can you manage lunch on Tuesday? 你星期二能来吃午

发表于:2019-02-25 / 阅读(174) / 评论(0) 分类 阅读空间
学英语单词
Alant, strach
amoxicillins
angwantiboes
asbestos roofing
Australasia
azaleatin
banter on/about
berge
blocking oscillator modulator
bucket root
Cajnice
capillaro-
carrying bolt
circuit to hold a route for shunting
class-member
commercial bribery
complementary wave length
condensate head tank
contins
crithology
current controller
database support
date in one's mind
diesel-driven DC welder
dodecameric
esophagostomy
exit opening
fast-talker
feed table clutch lever
finger-to-nose
flood control forest
forming ejector pin
gentianose
ghostlings
glass-filled
glided
goldhawk
governo
grovel before
hypermedia database
in-line antenna
in-line pump
instrument transmitter
inthrone
Jobert's fossae
Khanh Loc
Lancereaux's diabetes
lecithymen
lievrite
Ligamenta intercarpalia palmaria
lookee-likee
medicalises
Metamivanum
minimum stable distribution
Mokhotlong Dist.
Mulhousians
multiple-hop
national independence
newspaper-boy problem
nine points circle
nosegayed
ostry
penn yan
peraksine
phenol-fibre cam
pilot-operated
pit sawing
pot-ear
precedent condition
precollagenous fiber
protargin
punch machine
rain in
ricyt
riedel
ripping chisel
roentgen equivalent man
run ahead of one's ticket
Schwalbe's fissures
selenoamides
self-centeredly
self-organized growth
senior surveyer
shatford
short range aid to navigation
skip crane
stockholders' equity accounts
stromal lamellae
sweatsocks
the order of things
thought reading
three-phase fluidized bed
trading receipt
transformational history
universal knee and column milling machine
vaeyrynenite (v?yrynenite)
vapour expansion
Venoy
well-attending
wellaxo
wire rope steering gear
zinc-rich