单词:atmospheric radon activity
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[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
[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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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。
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