气中氡放射性

[00:00.00]Unit 6 text A Improving Industrial Efficiency through Robotics [00:04.24]通过机器人技术提高工业效率 [00:08.49]Robots,becoming increasingly prevalent in factories [00:14.73]and industrial plants throughout the developed world, [00:17.41]在机

发表于:2018-12-04 / 阅读(183) / 评论(0) 分类 大学英语自学教程下

[00:01.00]New Standard English Senior High Student's Book 3 [01:25.95]Model 1 Europe [01:30.09]Reading and Vocabulary [01:31.59]Great European Cities [01:34.13]PARIS [01:35.61]Paris is the capital and largest city of France, [01:40.75]situated on the

发表于:2018-12-04 / 阅读(313) / 评论(0) 分类 外研社新标准高中英语必修(1-4)

THE MAKING OF A NATION - American History: Life in the 1970s and '80s STEVE EMBER: Welcome to THE MAKING OF A NATION -- American history in VOA Special English. I'm Steve Ember. This week in our series, we look back at some of the social issues and c

发表于:2018-12-07 / 阅读(140) / 评论(0) 分类 2012年VOA慢速英语(一)月

By Jim Teeple First there was Charley, then Frances, and now Ivan; three major hurricanes in a month that have destroyed lives, homes and property across the Caribbean and the southeastern United Stat

发表于:2018-12-08 / 阅读(110) / 评论(0) 分类 VOA2004(下)--新闻盘点

Lesson19 The Dead Sea Throughout history people all over the world have gone to special places where mineral-rich hot springs flow from beneath the earth@s surface. Countries with much volcanic activity such as Japan have many such hot springs and ha

发表于:2018-12-08 / 阅读(338) / 评论(0) 分类 背诵为王第四册

发表于:2018-12-11 / 阅读(155) / 评论(0) 分类 VOA标准英语2014年(三月)

Health Report - Brains Gain From Physical Activity by Older People This is the VOA Special English Health Report. Increasing evidence suggests that being active can reduce a person's risk of dementia. Dementia is the name for the effects of Alzheimer

发表于:2018-12-16 / 阅读(116) / 评论(0) 分类 2011年VOA慢速英语(七)月

This is Scientific America's Sixty-Second-Science. I am Steve Mirsky. Got a minute? Some interesting electrical activity in the clouds of ash drifting around Europe as a result of that Icelandic volcano. Models predicted that electrical charge should

发表于:2018-12-24 / 阅读(130) / 评论(0) 分类 Scientific American(五)月

Predicting Earthquakes Can earthquakes be predicted? Scientists are working on programs to predict where and when an earthquake will occur. They hope to develop an early warning system that can be use

发表于:2018-12-31 / 阅读(116) / 评论(0) 分类 有声英文阅读

Can earthquakes be predicted? Scientists are working on programs to predict where and when an earthquake will occur. They hope to develop an early warning system that can be used to forecast earthquakes so that lives can be saved. Earthquakes are the

发表于:2019-01-02 / 阅读(128) / 评论(0) 分类 双语有声阅读

Health Report - With Physical Activity, No Need to Be an Olympian This is the VOA Special English Health Report. Watching the Olympics probably made some people feel a little guilty about not exercising. The truth is, if physical inactivity were a sp

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 2012年VOA慢速英语(九)月

Physical Activity Linked to School Achievement Pushing aside physical education to focus on academic subjects, such as math or reading, could have a negative impact on achievement, according to new reseach which finds physically-active students do be

发表于:2019-01-11 / 阅读(146) / 评论(0) 分类 VOA标准英语2012年(一月)

By Phuong Tran Dakar 15 January 2007 Rebels in Chad say they have seized a second town in the remote northeast as they resume low-intensity hit and run operations against the government. Government officials deny reports that Chadian soldiers have ce

发表于:2019-01-11 / 阅读(178) / 评论(0) 分类 2007年VOA标准英语(一月)

This is the VOA Special English Health Report. How active you are early in life may affect how able-minded you are late in life. That was the finding of a new study of cognitive impairment, or a loss in mental abilities. The study involved more than

发表于:2019-01-11 / 阅读(156) / 评论(0) 分类 2010年VOA慢速英语(七)月

By David McAlary Washington 07 March 2006 NCAR scientists Mausumi Dikpati (left), Peter Gilman, and Giuliana de Toma examine results from a new computer model of solar dynamics Researchers predict tha

发表于:2019-02-04 / 阅读(152) / 评论(0) 分类 2006年VOA标准英语(三月)

BEIJING, March 29 (Xinhua) -- Chinese President Xi Jinping on Wednesday stressed the importance of afforestation and urged people, especially the young, to understand and protect nature via tree planting activities. Chinese PresidentXi Jinpingtalks w

发表于:2019-02-05 / 阅读(166) / 评论(0) 分类 cctv9英语新闻2017年

New research suggests agriculture has greatly increased the amount of dust blowing off of West Africa, the world's largest source of atmospheric dust, and may have been one factor driving the decrease in rainfall in the region over the past several c

发表于:2019-02-07 / 阅读(206) / 评论(0) 分类 VOA标准英语2010年(七)月

A new study finds regular physical activity as a teenager may prevent cognitive impairment - a decline in mental abilities - decades later. Previous studies found that people who were physically active in later life were more likely to avoid mental d

发表于:2019-02-07 / 阅读(181) / 评论(0) 分类 VOA标准英语2010年(七)月

对于即将走出校门的毕业生来说,一封吸引人的求职信是进入理想企业的敲门砖。下面就是一位毕业生应聘实习销售代表的求职信。这封信言辞恳切,并且突出了他建立良好人际关系的能力。

发表于:2019-02-09 / 阅读(112) / 评论(0) 分类 求职英语

Science and technology. 科技。 Geoengineering. 地理工程学。 Implicit promises. 包含着承诺。 A geoengineering experiment has come unstuck. But there will be more. 地理工程试验取得突破。可期待更多。 FOR the past few year

发表于:2019-02-26 / 阅读(190) / 评论(0) 分类 经济学人综合
学英语单词
-crazy
Aberangell
atropus
auxiliary key field
Bakau, P.
Barre-Lieou
battles of langside
biogenetical
Boussouma
Brenzone
Calmuc
Canis lupus tundrarum
capture gamma rays
chemoreceptor of aortic body
chimen
cholodenko
comatosenesses
conditional relations
corona shield
crozet plateau
dapphniphyllum longistylium chien
Dawkins, Richard
decision thesis of probability
direct access storage device erase
dispersing lens
drop-hanger frame
earning protection
edward lawrie tatums
egg-box
ferrands
fibre periphery
Fill effect
friction starching
full fling
gear broach
geographic vertical
gnotobiotic culture
halterer
headhood
heat-treated steel bar
Helderberg formation
heterorhabdus clausii
high way crossing gap
huges
hyperbolic cylinder
instrument of evidence
internal pressure damage
international stream
Iron Butterfly
kalmanir
kvenna
macropsia
manometric techniques
masseteric
microphone socket
multiples of si units
multispiral
Net float
nichelle
nitrosulphophenol K
nonlinear phase-matching effect
number of strokes per minute
oceanographic catching
odo(u)r treatment
ofreach
Old Red Sandstone
other ship's engagements
overmeddling
paradentitis profunda simplex
partial eclipses
peppard
period shut-down
probe-set
raising and lowering operator
reactivity temperature coefficient
reiving
russula adusta
seawater treatment system
self-interaction
service percentage
Shackleton Canyon
SHG (second-harmonic generation)
slender lady palms
smart skins
specimen page
steel chair
successive time-share run
swimgloat
take (it) as read that...
thyratron servo
timpany
traumasthenia
trim stop
turgidity
two-in-hand winding
UHF tuning device
ultrametric inequality
ultrarational
viola striatas
voice a protest
voltage stabilization
working on live ultrahigh tension power lines