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[時差N小時] 時差N小時:為何會形成黑眼圈? Why Do Dark Circles Form Unde
也許你的確需要多睡一會兒，盡管有著普遍的誤解，但眼周或眼底的黑眼圈和浮腫似乎與睡眠不足沒有太大的關系2014-02-25 編輯：mike
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[SAT寫作輔導] SAT寫作高分句型模板
下面為大家整理和推薦的是SAT寫作高分的句型總結，都是以實際的例句形式呈現的。大家在備考SAT寫作考試的時候，多掌握一些句型類的模板是非常有效果的，對于提高寫作的速度節省時間非常有效。大家一起來看看詳細2012-06-13 編輯：echo
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[SAT寫作輔導] SAT考場如何形成寫作思路?
SAT寫作考試的時間非常緊張，考生需要在最多3分鐘的時間內形成自己的寫作思路和寫作大綱。那么我們如何練習才能在考場上達到這樣的一個程度呢?下面天道小編就為大家整理了關于SAT寫作思路的練習方法，希望對大家2012-06-13 編輯：echo
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[探索發現] 宇宙的形成:大爆炸(16)
So whether the universe end with a big crunch, our reverse of the Big Bang, or was it end by expanding out and becoming cold and dark. If you wish, would it end in fire or ice or with a bang or a wip2012-06-04 編輯：melody
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[探索發現] 宇宙的形成:大爆炸(15)
In the 14 billion years since the Big Bang, galaxies have been created, filled with stars, planets, and moons, and the universe has been expanding the whole time.大爆炸以后的140億年里，包羅萬象的星河2012-05-31 編輯：melody
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[探索發現] 宇宙的形成:大爆炸(14)
These the fluctuations would grow to form galaxies. So if it wasn't for those little density fluctuations, you and I would not be here today.物質分布的密度不斷漲落，范圍逐漸擴大，最后形成星系2012-05-30 編輯：melody
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[探索發現] 宇宙的形成:大爆炸(13)
It was in fact the moment of creation, nearly 14 billion years ago when those first atoms got their electrons. That's the moment when the milky cloud clears and the new universe comes into vi2012-05-29 編輯：melody
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[探索發現] 宇宙的形成:大爆炸(12)
The first one to form is Hydrogen. Then, over the next 3 minutes the Universe begins to create two more elements, helium and lithium.We went from a Universe that was infinitely small to a Universe th2012-05-28 編輯：melody
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[探索發現] 宇宙的形成:大爆炸(11)
The universe with equal amounts of matter and anti-matters, equivalent to the universe with no matter at all, because the matter and anti-matter will annihilate back into pure radiation, and with not2012-05-25 編輯：melody
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