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In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou
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MODULE 2 DIARIES\n [au:]模块2 日记 [00:04.13]UNIT 4 Tree Planting Day\n [au:]第4单元 植树节 [00:08.01]Text\n [au:]课文 [00:09.63]1 Here's a page from Jiamin's diary. Look, listen and read the diary.\n [au:]1 以下是佳民日记中的一页
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[00:00.52] 12.18 Holes in His Mind [00:06.29]Major James Nesmeth had a dream of improving his golf game and he developed a unique method of achieving his goal. [00:14.35]Until he devised this method, he was just your average weekend golfer, shooting
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BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands surface. These cave systems form in carbonate rock, often on islands.
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New Data Adds to Understanding of 'Black Holes' WASHINGTON Scientists continue to learn more about black holes in space, places where the pull of gravity is so strong that not even light can escape. Black holes occur after supergiant stars explode in
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Lesson 2 News 第二课 实时新闻 December 2 12月2日 Polar Bears 北极熊 Polar bears are big and white. 北极熊身材又高大毛皮又雪白， They look soft and cute. But they are not. 看起来柔软可爱， 但实际上却不是如此。
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