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State mode refers to allowing an object to change its behavior when its internal state changes. The object seems to have modified its class. Divide this sentence into two parts by commas. The first part means to encapsulate the state into a separate class and delegate the request to the current state object. When the internal state of the object changes, different behavior changes will be brought about. The second part is from the customer's point of view, the object used has completely different behaviors in different states. The object seems to be instantiated from different classes, but in fact this is the effect of using delegates.周芷若并没有感到快乐，反而越发孤独了。2016年春天，驻村干部陈平来到豫北一个美丽的乡村，为了改变村里贫困户的窘迫现状，深切落实国家的“精准扶贫”政策，陈平深扎农村，为解决老百姓的民生问题煞费苦心。　　然而理想是丰满的，现实是骨感的，村里不同贫困户面临的困境都截然不同，有的人因家庭和生意变故酗酒成瘾，一蹶不振 ；有的人否认自己是贫困户，消极避世；有的人天性好吃懒做，丧失斗志......面对种种棘手难题，陈平陷入了思考与斗争之中......Read_plt=elf. Symbols ['read ']北京电视台文艺节目中心唯一一档日播的“语言类”栏目，“强力推出”第一时段，独创“幽默评书”打造北京风格，“坚守稳固”第二时段，坚持有“亲和力”的专业化道路，“独具匠心”年轻时段，开辟“推新人 展新作”的平台，深入基层前沿挖掘新人新作。讲述医学生Mia，发现在她所在的大学城使用了高度先进的生物黑客技术。当这一突破性的发现落入坏人手中时，她必须决定她站在哪一边，以及她愿意走多远才能找到真相。More slowly