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After surviving an IED explosion in combat overseas, a young soldier with the Army Motorcycle Unit is medically discharged with a broken back and leg. Against all odds he trains to make an impossible comeback as a motocross racer in order to support his family.。姜莱隐身份做实习医生，扶持男友陈池，出钱照料其病母，却因 “出身” 遭陈家轻慢。她助陈池获出国名额，陈母逼她离开，陈池誓言非她不娶。五年间，姜莱察觉其冷淡却自我安慰，后成医院教授，还为陈母研出特效药。。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 ...。