单词:geological cycle
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[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.61]2001 Passage1 [00:11.16]Specialisation can be seen as a response to the problem [00:14.87]of an increasing accumulation of scientific knowledge. [00:19.40]By splitting up the subject mat
Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To be honest with you, I didnt feel a thing. But many other Scientific American staffers felt the shaking a few minutes before 2 P.M. Eastern time. After checking Twitter
Fire Cycle 火灾规律 The El Nino phenomenon of 1997-98 unleashed torrential rain in some parts of the world, while creating abnormally dry conditions in others. And it sparked record numbers of wildfires. Learn more about climate and wildfire -- toda
One of the most powerful earthquakes ever to hit Mexico shook the southern part of the country Thursday night. Mexican officials said Friday at least 32 people had died. The 8.2-magnitude earthquake was stronger than the 1985 quake that killed thousa
Scientists Help Insects to Help Colorado River Fish Fish need insects for food. So, healthy rivers have healthy insect populations. However, in the United States, part of the Colorado River has an insect shortage that has left many fish without food.
This the VOA Special English Development Report. Picture a bicycle with a two-wheeled carriage in place of a back tire. India has millions of these cycle rickshaws. The operators are called pullers. They ride through the streets pulling passengers a
AS IT IS 2015-10-11 Broken Glass Walkway Shatters Nerves in China Imagine this. You are visiting a beautiful mountain somewhere in the countryside. Part of the trip takes you up a steep mountain cliff. At the top, visitors can step out on to a see-th
The government said that work on the first seven cycle tracks which were promised earlier this year will start in the summer. This will cost $9 million. Another $41 million will be spent later. Together these cycle tracks will be called The Great Rid
Luckily Hutton had a Boswell in the form of John Playfair, a professor of mathematics at the University of Edinburgh and a close friend, who could not only write silken prose butthanks to many years at Hutton's elbowactually understood what Hutton wa
题目: At various times in the geological past, many species have become extinct as a result of natural, rather than human, processes. Thus, there is no justification for society to make extraordinary efforts, especially at a great cost in money a
中国月球探测车工作稳定 BEIJING, Dec. 21 (Xinhua) -- China's moon rover, Yutu (Jade Rabbit), worked in stable condition following its restart after a nap on Friday night, according to the Beijing Aerospace Control Center (BACC). The six-whe
Classical music fans in Beijing are now embracing a massive work-the complete cycle of Beethoven's 9 symphonies with The Deutsche Kammerphilharmonie Bremen. Paavo Jarvi, an internationally famous Estonian conductor, is the artistic director of the or
Officials in Iran say 180 people have been killed in two strong earthquakes just 11 minutes apart in the country's northwest, near the city of Tabriz. More than 1,300 people are estimated to have been injured in Saturday's mid-afternoon quakes. State
WASHINGTON, July 16 (Xinhua) -- A 6.0-magnitude earthquake jolted southern Peru on Tuesday, the U.S. Geological Survey (USGS) said. The quake, which occurred at 0237 GMT, was centered 18 km west of Chivay, with a depth of 6.6 km. No casualties or dam
An earthquake nearly 3,000 years ago may be the culprit in the mysterious disappearance of one of China's ancient civilizations, new research suggests. 最新研究发现,3000年前的一场地震可能是导致中国一个古文明被毁灭的原因
WASHINGTON, Oct. 11 (Xinhua) -- A 6.1-magnitude earthquake jolted off the northeastern coast of Venezuela on Friday, the U.S. Geological Survey said. The quake, which occurred at 0210 GMT Saturday, was centered 33 km north of the town of Gueiria.
Afghanistan has become the first country to map its natural mineral resources using an advanced remote sensing technique known as hyperspectral imaging. The mapping, a collaborative effort between the U.S. Geological Survey and the Afghan Geological