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[聽力文摘] 聽力文摘第19期:大陸相撞時(shí)我們星球的歷史
When Continents Collide: The History Of Our Planet大陸相撞：我們星球的歷史It was one of the Earth's momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ra2012-06-21 編輯：rainbow
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[聽力文摘] 聽力文摘第18期:為什么斑馬身上有條紋?
Why Do Zebras Have Stripes?為什么斑馬身上有條紋？For many animals, camouflage is an important part of survival. A leopard’s spotted coat and a polar bear’s white fur help them blend into their resp2012-06-20 編輯：rainbow
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[聽力文摘] 聽力文摘第17期:穴居人怎樣抵抗疾病
How Neanderthals Fought Disease穴居人怎樣抵抗疾病Every year people are encouraged to get their annual flu shots. Signs are posted at drug stores and clinics. Get your shots here. Modern preventive me2012-06-19 編輯：rainbow
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[聽力文摘] 聽力文摘第16期:凍結(jié)的一瞬!
Freeze凍結(jié)的一瞬Suppose you are an animal. Well, actually, you are an animal, but suppose you’re another kind of animal, maybe something small that might make a tasty snack for a larger predator.假設(shè)2012-06-18 編輯：rainbow
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[聽力文摘] 聽力文摘第15期:糜鹿也有關(guān)節(jié)炎?
Did You Know That Moose Can Have Arthritis?糜鹿也有關(guān)節(jié)炎？It’s easy to tell, even at a glance, that people and moose are pretty different. Moose, at least males, have big, wing shaped antlers. Peop2012-06-15 編輯：rainbow
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[聽力文摘] 聽力文摘第14期:什么是鮮奶油?
What Is Whipped Cream?什么是鮮奶油？It adorns ice cream sundaes, pumpkin pie, gingerbread, and hot chocolate. Its sweet creaminess tantalizes taste buds and sends dieters running from the scale. Did2012-06-14 編輯：rainbow
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[聽力文摘] 聽力文摘第13期:短信脖子病來了!
Beware Of Text Neck!小心短信脖子Remember when the Blackberry was all the rage, and people worried about straining their thumbs typing on that tiny keyboard?還記得黑莓很流行的時(shí)候，人們擔(dān)心在那個(gè)小小的2012-06-13 編輯：rainbow
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[聽力文摘] 聽力文摘第12期:為什么高海拔會(huì)引起頭痛?
Why Does Altitude Cause Headache?為什么高海拔會(huì)引起頭痛？Mountain climbers face many dangers as they brave the cold winds and icy slopes and jagged cliffs of the peaks they climb. But one of the most2012-06-12 編輯：rainbow
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[聽力文摘] 聽力文摘第11期:運(yùn)動(dòng)會(huì)引發(fā)頭痛嗎?
Does Exercise Trigger Headache?運(yùn)動(dòng)會(huì)引發(fā)頭痛嗎？Dear A Moment of Science,親愛的片刻科學(xué)家，I like to exercise, but I suffer from migraines and worry that getting my sweat on at the gym could trigger2012-06-11 編輯：rainbow
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