[医] 锥体细胞层

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(280) / 评论(0) 分类 VOA2003(下)-环境与健康

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(560) / 评论(0) 分类 上海牛津初中英语九年级

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(207) / 评论(0) 分类 听一分钟英文-O

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(259) / 评论(0) 分类 英语课程学习计划和讲义

第三章 神经系统的传导通路 Chapter 3 Neural Pathways acoustic radiation 听辐射 adrenergic pathway 肾上腺能通路 aminergic pathway 胺能通路 auditory pathway 听觉传导通路 central radiation of thalamus 丘脑中央辐射 chemical pathways 化学通路 cholinergic

发表于:2018-12-30 / 阅读(404) / 评论(0) 分类 医学英语

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(218) / 评论(0) 分类 国家地理2008年

美语中,一些感叹词的意义跟字典上的解释不尽相同,要在日常生活中才能体会到。让我们看看以下几个例子: Oh的字典意义是嗬;哦;哎呀,表示惊讶、的恐惧等。但将这个词连起来用,却

发表于:2019-01-09 / 阅读(192) / 评论(0) 分类 实用英语

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(197) / 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(171) / 评论(0) 分类 VOA标准英语2008年(五月)

Air pollution 空气污染 A: I've heard of ground-level ozone but can you explain what it is exactly? A:我听说近地面臭氧,但是你能确切解释一下是什么吗? B:Yes, it's one of the main air pollutants. Factories don't emit it dire

发表于:2019-01-14 / 阅读(169) / 评论(0) 分类 职业技术英语口语

A: May I exchange this DVD player? B: Certainly. Do you have your receipt? A: Here you are. B: Now, why do you want to exchange it? A: It won't play a DVD. B: I'm sorry. I'll get you a new player. A: At first, I thought it was me. B: Okay, here's a n

发表于:2019-01-20 / 阅读(202) / 评论(0) 分类 购物英语对话

A: I'd like to exchange this DVD player. B: Of course. Do you have your receipt? A: Here it is. B: Now, could you tell me why you want a different one? A: It refuses to play my DVDs. B: That's strange. Let me get you a new one. A: All my friends trie

发表于:2019-01-20 / 阅读(151) / 评论(0) 分类 购物英语对话

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(211) / 评论(0) 分类 纯正英语一分钟

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: Scientists studying climate change in Antarctica reported this week that the hole in the protected ozone layer of the earth's atmosphere has shrunk. The discovery of the hole in the mid-1980s led to a wo

发表于:2019-01-27 / 阅读(164) / 评论(0) 分类 PBS访谈环境系列

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(195) / 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(179) / 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(344) / 评论(0) 分类 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

发表于:2019-02-07 / 阅读(295) / 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(212) / 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(250) / 评论(0) 分类 英语新闻
学英语单词
acidise
Adrezon
alecost
atomic netplane
auditory hallucinations
average molecular weight
Azuchi
babble on
backshell
backward power
bakunins
bartleson
Browns I.
burnout weight
capillary fringe
carbon pile type automatic voltage regulator
Caroticocavernous
carrier injection
choroideal tuberculosis
concealed light
controlled flight into terrain
disjunct
disk induction motor
dragon fruit
dropkicked
dsn (dielectric stabilized oscillator)
dysbolismus
eiler
fabricatress
fashion arbiters
fatigue value
fedorite
fresh hide
gashi
gekkonidaes
geometrical electron optics
gnowe
Hailsham
hyperexcitable
ice cream mixer
in-grain
instrumento
jameses
king-hells
Konjic
land-loping
lap seam
launching pressure
lepismas
leveling machine
loading-unloading machine
long-toothed
loveline
low-pressure slide valve
LVMWI
lysimachia nemorums
maika
manganglauconite
mantelpiece
mechanical boring machine
mimer
mislearned
moisture content metre
N1Jmethylnicotinamide
neolithic archaeology
obidoxime chlorides
open wire carrier telephone system
organic decentralization
Ormond, Pt.
Pay Yourself First
pipe sealing compound
programmatic marketing
prolongation of term
pulsating bubble
richmonds
Rockwell hardness A-scale
salviatis
sarcomabotryoides
scan width
score board
self-coincidence
series stabilization
sideboy
slave motor
spanish relapsing fever
steam smothering system
stirodont dentition
streptococcosis
subgenogroup
supplement reserve facility
sursassite
switch gear
tardyons
technology-related anxiety
Threne olive
to plough the air
transparent interrupts
vapor uptake
vertical point
vitreous white arsenic
wirewinding machine