20 年前
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二选一捐赠知识竞赛秀—今天配送！几个人答对了问题就捐赠几箱物资！其中有人提前知道所有正确答案，他会是谁呢？。The Mayan calendar predicts that the world will end in 2012, and many believe it's true. This Emmy-nominated Discovery Channel documentary illustrates the variety of ways the apocalypse could arrive in. True believers will learn how volcanic eruption, widespread plague, deadly asteroids, neighboring stars, and nuclear and biological weapons could each bring about the extinction...。BBC.橡树.自然界最伟大的幸存者.Oak.Tree.Nature's.Greatest.Survivor.2015】古老橡树是英伦乡野的标志，建造13世纪的教堂和纳尔逊时代的战舰。植物学家拍摄400岁橡树的四季，秋的树根，冬的风雪，春的橡子，夏的家园，既是科学记录，又是历史探究。。
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