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国家地理-2008-03-20 Rho Ophiuchi Cloud 璀璨的星云

Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(526) / 评论(0)

国家地理2008年

VOA标准英语2011--Cast Iron Revival Keeps US Foundry Cooki

Cast Iron Revival Keeps US Foundry Cooking Tucked between the Tennessee River and the hills of Marion County lies the small town of South Pittsburg, Tennessee. Home to just 3,200 people, it has one claim to fame: a metal foundry called Lodge Cast Iro

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英语儿歌274首第263期:Who stole the cookies from the coookies jar

歌词如下： Who stole the cookies from the cookie jar? Cindy stole the cookies from the cookie jar. Who me? Yes, you. Not me.Then who? Lindy stole the cookies from the cookie jar. Who me? Yes, you. Not me.Then who? Sally stole the cookies from th

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HEALTH REPORT - Surgeon General Links More Diseases to Smoking By Cynthia Kirk Broadcast: Wednesday, June 16, 2004 This is the VOA Special English Health Report. Tobacco is even more dangerous than do

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健康与经济

英语听力：自然百科 Rho Ophiuchi Cloud 璀璨的星云

Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

发表于:2019-02-26 / 阅读(587) / 评论(0)

自然百科2008年

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