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Lesson 2 Spare that spider不要伤害蜘蛛 First listen and then answer the following question. 听录音，然后回答以下问题。 How much of each year do spiders spend killing insects? Why, you may wonder, should spiders be our friends? Becau
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Changing The Shape Of Your Pinnas 改变你耳廓的形状 The pinnas are the distinctive ridges in your outer ear. Everyone has slight differences in the shape of pinnas. Researchers have theorized that the brain has to learn the shape of its own ea
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After 4 Decades Of Breaking Molds, Clinton Failed To Shatter The Ultimate Ceiling play pause stop mute unmute max volume 00:0007:53repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or
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Molting Molds Flying Bird Size Limit A study in the journal Public Library of Science Biology finds that it's the rate at which flying birds can replace their flight feathers that determines how big they can grow and still get off the ground. Karen
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By Savita Patel San Francisco, California 21 February 2008 A suburb of San Francisco, California was recently the kitty capital of the world as hundreds of cats came together at the 24th annual Tails and No Tales Cat Show. The two-day event was a fel
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Jobs decreed that the computer should be an absolutely perfect cube, 乔布斯规定，计算机必须是绝对完美的立方体， with each side exactly a foot long and every angle precisely 90 degrees. 每条边都正好一英尺长，每个角都是
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