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青鹿学院，曾经是魔兵大陆最荣耀的魔法学院，但是随着学院老院长驾鹤西游后，遭遇了一场劫难，被曾经的叛徒魔天雄带领着一批强者袭击，学院传承失去七、八，而且还丢失了镇院的“青鹿魔装”。自此，青鹿学院遭到其他学院欺压，越来越衰落，眼看学院处于危难之际，一个与青鹿学院极有缘的学徒李青鹿加入了学院，并扬言要带领青鹿学院重回顶级魔法院之列，替青鹿学院找回曾经的无上荣耀。各学院的天之骄子自然不会给李青鹿这样的机会，纷纷恃强凌弱，想要将李青鹿踩下，结果被李青鹿统统反踩，最终夺回被各学院分割的“青鹿魔装”。。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 ...。