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[自然百科] 探索世界奧秘之Supermassive Black Holes(超大質(zhì)
探索世界奧秘之Supermassive Black Holes(超大質(zhì)量黑洞) Unit06When the results came down from the telescope he saw something that was completely unexpected. The picture from the active galaxy where he h2008-07-31 編輯：echo
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[自然百科] 探索世界奧秘之Supermassive Black Holes(超大質(zhì)
探索世界奧秘之Supermassive Black Holes(超大質(zhì)量黑洞) Unit05By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a2008-07-31 編輯：echo
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[自然百科] 探索世界奧秘之Supermassive Black Holes(超大質(zhì)
探索世界奧秘之Supermassive Black Holes(超大質(zhì)量黑洞) Unit04This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole su2008-07-31 編輯：echo
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[自然百科] 探索世界奧秘之Supermassive Black Holes(超大質(zhì)
探索世界奧秘之Supermassive Black Holes(超大質(zhì)量黑洞) Unit03A supermassive black hole is quite simply gravity gone mad. An object of such concentrated matter its gravitational pull is insatiable. Noth2008-07-31 編輯：echo
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[自然百科] 探索世界奧秘之Supermassive Black Holes(超大質(zhì)
探索世界奧秘之Supermassive Black Holes(超大質(zhì)量黑洞) Unit02But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to expla2008-07-30 編輯：echo
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[自然百科] 探索世界奧秘之Supermassive Black Holes(超大質(zhì)
探索世界奧秘之Supermassive Black Holes(超大質(zhì)量黑洞) Unit01In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We2008-07-30 編輯：echo
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[自然百科] 探索世界奧秘之The Ghost In Your
探索世界奧秘之The Ghost In Your Genes(基因外遺傳現(xiàn)象) Unit15The work of these scientists is at last throwing a spotlight onto the mysterious hidden world of epigenetics. They appear to show that the2008-07-30 編輯：echo
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[自然百科] 探索世界奧秘之The Ghost In Your
探索世界奧秘之The Ghost In Your Genes(基因外遺傳現(xiàn)象) Unit14The impact of a famine being captured by the genes in the eggs and sperm, and a memory of this event was being carried forward to affect th2008-07-30 編輯：echo
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[自然百科] 探索世界奧秘之The Ghost In Your
探索世界奧秘之The Ghost In Your Genes(基因外遺傳現(xiàn)象) Unit13They discovered that when a famine was able to trigger an effect was different for the grandmother than the grandfather. The grandmother ap2008-07-29 編輯：echo
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[自然百科] 探索世界奧秘之The Ghost In Your
探索世界奧秘之The Ghost In Your Genes(基因外遺傳現(xiàn)象) Unit12Olov Bygren was looking to see if poor nutrition had an effect on health when he stumbled on something curious. It appeared that a famine c2008-07-29 編輯：echo
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