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[听力文摘] 听力文摘第19期:大陆相撞时我们星球的历史
When Continents Collide: The History Of Our Planet大陆相撞:我们星球的历史It was one of the Earth's momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ra2012-06-21 编辑:rainbow
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[听力文摘] 听力文摘第18期:为什么斑马身上有条纹?
Why Do Zebras Have Stripes?为什么斑马身上有条纹?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 编辑:rainbow
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[听力文摘] 听力文摘第17期:穴居人怎样抵抗疾病
How Neanderthals Fought Disease穴居人怎样抵抗疾病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 编辑:rainbow
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[听力文摘] 听力文摘第16期:冻结的一瞬!
Freeze冻结的一瞬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.假设2012-06-18 编辑:rainbow
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[听力文摘] 听力文摘第15期:糜鹿也有关节炎?
Did You Know That Moose Can Have Arthritis?糜鹿也有关节炎?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 编辑:rainbow
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[听力文摘] 听力文摘第14期:什么是鲜奶油?
What Is Whipped Cream?什么是鲜奶油?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 编辑:rainbow
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[听力文摘] 听力文摘第13期:短信脖子病来了!
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?还记得黑莓很流行的时候,人们担心在那个小小的2012-06-13 编辑:rainbow
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[听力文摘] 听力文摘第12期:为什么高海拔会引起头痛?
Why Does Altitude Cause Headache?为什么高海拔会引起头痛?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 编辑:rainbow
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[听力文摘] 听力文摘第11期:运动会引发头痛吗?
Does Exercise Trigger Headache?运动会引发头痛吗?Dear A Moment of Science,亲爱的片刻科学家,I like to exercise, but I suffer from migraines and worry that getting my sweat on at the gym could trigger2012-06-11 编辑:rainbow