宇宙刑警战士的处刑

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 ...。一对夫妻买的无人机有了人类意识，且是一个连环杀手的意识，带来血腥杀机……。