永佃权
参考答案：
由永佃权人向土地所有者支付租金，为耕作和放牧的需要长期或永久使用土地，并获得相应收益的权利。
The uncertainty of an event is measured by its probability of occurrence and is inversely proportional to that. The more uncertain an event is. The more information is required to resolve uncertainty of that event. The amount of information is measured in （）
A、possibility
B、bits
C、bps
D、probability
患者男性，42岁，因“突发意识模糊”来诊。入院时呼之不应，双眼瞪视不动，伴擦鼻、咀嚼，醒后可继续原来的动作，对发作全无记忆，并在清晨觉醒或刚入睡时出现短暂、快速的某一肌肉或肌群收缩。
首选药物为（）
A.苯妥英钠
B.地西泮
C.丙戊酸钠
D.乙琥胺
E.卡马西平
