一是有基础的智能产品使用经验，比如用过智能音箱、智能手机；二是来自家庭的支持，子女都教过他们使用AI；三是有主动学习AI的意愿，他们是典型的技术乐观派。
Lovell was assigned to an aircraft carrier group flying Banshee jets off ships at night. It was a white-knuckle, high-wire business fit only for daredevils. But for Lovell, it was not enough.
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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.