简介
1948年，彼时战后的德国正处于重建阶段，东部和西部即将面临长期分裂对立的局面。沃尔夫家族的工厂历经四代传人，有着长达80年的历史。如今这个家族企业面对着复杂多变的环境局势，不得不在夹缝中求生存...。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 ...。