William Shatner sits down with scientists| innovators and celebrities to discuss how the optimism of "Star Trek" influenced multiple generations.。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 ...。姜早为退婚去找工作,遇上同样为了退婚找假女友的李淮舟,两人签下合约成为假扮情侣,试图劝退原有的联姻对象,却在日渐相处中互生好感,两人更加坚定退婚决心,退婚退到最后却发现联姻对象就是彼此。。