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Perhaps it’s the biggest question science has left to answer, how did life begin? Now, molecular biologists in Cambridge university have discovered tiny molecules of RNA which they say might provide some clues. Science journalist and author Philip Ball explains what we know and whether we’ll ever find the origins of life on earth.
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03、年夜饭与新年装，拟人化营销的“社交货币”当宠物逐渐成为“家庭的一份子”，春节的叙事也在悄然发生改变，同时浮现出一批具备强传播属性的新消费品类。
2025年底，西延高铁开通，复兴号开到宝塔山下，延安苹果坐上高铁。“客户来果园实地看果品，成本大幅降低。”陕西洛川县果商杜王军说。