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If a potential mate has managed to pass all these tests, there's still one more: the infamous first kiss, 即便一个潜在的伴侣已经成功通过以上所有的测试，这里还有最后一关：初吻， a rich and complex exchange of tactile
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The earthquake that struck near Mexico City Tuesday came exactly 32 years after an 8.0 magnitude quake hit the area. The 1985 earthquake killed nearly 10,000 people. Mexican officials say more than 200 people are confirmed dead following Tuesdays qua
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The common method of closing a surgical incision is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging,
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Scientists say the surface of the Earth is cracked like a giant eggshell. They call the pieces tectonic plates. As many as twenty of them cover the Earth. The plates float about slowly, sometimes crashing into each other, and sometimes moving away fr
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Idiom: On the wagon 成功戒酒 Hit the book: Scale Descend Mariana trench Crescent Scar Peak Trough Tectonic Collide
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Earth is alone among the rocky planets in having tectonics, and why this should be is a bit of a mystery. It is not simply a matter of size or densityVenus is nearly a twin of Earth in these respects and yet has no tectonic activity. It is thoughttho
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