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In essence, classification is to find the common points and differences of things in our thoughts. It is the basic method and ability for us to know and understand the world. On the basis of classification, it is possible to judge and reason, and to form concepts and make decisions. Classification requires comprehensive demonstration activities such as association, analogy, reasoning and extension, and is the basic cell of thinking./cold为争取一个出国深造的名额，姜妍（宋佳 饰）与博士生肖琳（阿斯菇 饰）陷入一场不光彩的竞争，在献身导师刘枫（石凉 饰）被未婚夫吴征（朱宏嘉 饰）发现后，她失手将其杀死，并将尸体埋匿家中。从此，姜妍被一种无法摆脱的梦魇所笼罩。姜妍发现自已怀孕后找导师求解，导师竟让和他关系暧昧的肖琳照顾自己。姜妍不想让肖琳知道自己与导师之间的龌龊事，她感觉肖琳眼睛背后还有一双眼睛，到底是什么她也理不出头绪。姜妍偶然发现，原先导师给她安排的研究对象——精神病患者杨大民（刘波 饰）的女儿没有死，而杨大民也不是什么精神病，导师究竟要干什么呢.....Germany: 1,770,000　　强出狱，知道鹏夺其女友，酒后胡言，指鹏今日成就，全仗其与伟之功，鹏感不悦，顿生戒心。 　　　　 病愈后的白求恩怀着106. X.X.223