煤球哥李新义

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Witness protection is often glamorised as keeping innocent witnesses safe from harm but the truth is darker, murkier, and far more complex. Many protected people are themselves criminals. It’s a life of moral compromise. It also involves maximum secrecy, false identities, and a world where you can’t trust your own colleagues. Based on the first-hand experiences of a long servin...。山寨之王The Asylum公司出品的山寨版《环太平洋》。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 ...。