19 年前
视频简介
讲述一个平凡女孩被外科医生和一个女人合谋设计整容变成另一个女孩，但是纸包不住火，这个假面的秘密最终会被人揭穿吗？。NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One ...。
标签
交通工具
西部
