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项羽一拍帅案，怒道：哼，这些人打仗时避战畏敌，不敢出战，这会子跑来做什么？诸将领脸上也浮过一丝不屑于嘲弄。杨长帆也不去多想那些恼人的事情，只拉过翘儿到大炮后面，让她搬起大炮尾部的杆，兴致勃勃地瞄准起来。秦枫赞赏地看了她一眼道：这个我刚才也留心了。The chairman of MDT meeting is responsible for supervising the attendance of members so as not to affect MDT work and decision-making due to frequent absence.The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu经验则告诉我们政治问题揭开总有个内幕,内幕揭开还有个黑幕...老林年逾四十还是个单亲爸爸，个中苦闷异于常人自然不言而喻。更特殊的是他的职业——人民警察。作为警察他自然是尽心竭力，心系人民，他的电话24小时不关机，而且几乎管片的居民都有他的号码，大事小情他都风雨无阻。老林和所长喻嘉是多年合作的好同事，要不是刘小小疯狂追求老林，两个人都不会意识到这么多年来两个人在工作以外也产生了男女之间的默契和情感，可即便意识到了，碍于面子和舆论，两个人都不愿先捅破这层窗户纸。就在焦灼之际，老林收到杀人犯寄过来的刀片和死老鼠，作为一个历经风雨的老警察，他不怕死，但很怕自己所爱的人们会受到连累。保护人民的同时也要保护自己的家人朋友。老林和派出所的同事共同面对来自罪犯的挑战。