磁极

Women's Pole Vault Provides Stirring Drama at Olympics

By Parke Brewer The women's pole vault provided one of the stirring dramas of the 2004 Olympic track and field competition. Until the mid 1990s, women's pole vault was not taken very seriously, mainly

发表于:2018-12-12 / 阅读(82) / 评论(0)

VOA2004（下）--雅典奥运

SSS 2008-08-26

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(117) / 评论(0)

Scientific American(八)月

第74期: kneel, lap, magnetic, nasty, zero

说一口流利的英语，从简单的单词开始。听听，读读，背背，今天你的词汇量又增加了5个。单词/词义中英例句单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(131) / 评论(0)

每日攻克5词

加州语文教材 G5 V5 North Pole, South Pole 12

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发表于:2019-01-08 / 阅读(209) / 评论(0)

加州语文教材California Treasures G5

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加州语文教材California Treasures G5

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发表于:2019-01-08 / 阅读(195) / 评论(0)

加州语文教材California Treasures G5

英语听力：自然百科地球力场 Earth's Force Field—10

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(81) / 评论(0)

自然百科2011年

英语听力：自然百科行星旅行：土星 Saturn—8

Saturns apparently peaceful appearance is due to a haze of high level ammonia in the upper atmosphere, by looking deep into Saturn in the infrared, using the planets own internal heat as a light source, Cassini has revealed the planets true nature. T

发表于:2019-01-22 / 阅读(55) / 评论(0)

自然百科2012年

CCTV9英语新闻：China's first permanent magnetic monorail train successfully completes test run

China's first permanent magnetic monorail train has successfully completed a test run in the city of Qingdao, in Shandong Province. The high-tech urban transportation system features strong climbing capacity, a small turning radius, energy efficiency

发表于:2019-02-05 / 阅读(96) / 评论(0)

cctv9英语新闻2016年

Magnetic Bubbles Detected at Edge of Solar System

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(109) / 评论(0)

英语新闻

加州语文教材 G5 V5 North Pole, South Pole 01

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发表于:2019-02-09 / 阅读(170) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(162) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(191) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(208) / 评论(0)

加州语文教材California Treasures G5

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加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(186) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(193) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(211) / 评论(0)

加州语文教材California Treasures G5

【英语时差8,16】南北两极-下

By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens of thousands of years ago. Surprisingly, its not alw

发表于:2019-02-23 / 阅读(101) / 评论(0)

英语时差8，16

VOA慢速英语2019--磁极的移动速度比科学家预想的快

Magnetic North Pole Moving Faster Than Scientists Expected Earths north magnetic pole is moving, researchers say. It has moved so much, so quickly that a group of scientists hurried to change a model that helps guide shipping, airplanes and submarine

发表于:2019-03-12 / 阅读(262) / 评论(0)

2019年VOA慢速英语(二)月

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