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用Mp3背六级单词023

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发表于:2018-12-01 / 阅读(83) / 评论(0)

用Mp3背六级单词

2017年CRI Zhao Zhongxian profile: Superconductor breakthrough will speed up changes

Semiconductors, or microchips, have been changing the way the world works for the past half-century. The technology has made radios, televisions and mobile devices commonplace. In advancing the technology, researchers are now focusing on superconduct

发表于:2018-12-02 / 阅读(80) / 评论(0)

2017CRI中国国际广播电台

60秒科学:Forcing Electrons into Superconducting Line

Forcing Electrons into Superconducting Line In a study in the journal Nature researchers created a pseudo gap, in which electrons in superconducting materials line up just before flowing resistance-free. Sonya Buyting reports Imagine a world with lev

发表于:2019-01-02 / 阅读(150) / 评论(0)

60秒科学

VOA慢速英语2015 科学家测试太阳能动力

Scientists Testing Space Propulsion by Light 科学家测试太阳能动力 Can the sun provide power for a spaceship to travel to the edge of our solar system? The answer may come from a small satellite. A Delta V rocket carried the satellite into s

发表于:2019-01-12 / 阅读(53) / 评论(0)

2015年VOA慢速英语(六)月

VOA慢速英语2015 NASA Working Toward Mission to Mars

NASA Working Toward Mission to Mars The head of the National Aeronautics and Space Administration, or NASA, said that the space agency is on track to land people on Mars in the 2030s. Charles Bolden is the administrator for NASA. He said that five ye

发表于:2019-01-12 / 阅读(50) / 评论(0)

2015年VOA慢速英语(五)月

地道英语在线听-Motor 汽车

Presenter/producer: Jean Dong Jo: This is Real English from BBC Learning English. Im Jo. Jean: And Im Jean. Jo: Today were going to look at words and phrases that you might not find in your English text book. Jean: 学习英式英语非常重要的一部分就是要

发表于:2019-02-26 / 阅读(138) / 评论(0)

地道英语在线听

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学英语单词

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