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郭勤勤是个令人头疼的人物：不够圆融、不够亲切，不怕得罪人，但偏偏，她认真负责、能力很强，所以公司上下众多讨厌她的人帮她取了一个外号「面瘫姐」！秦始皇猝死，奸臣弄权，二世继位，残暴不仁，滥征民力，民不聊生，流寇四起。恰此风云际会之际，英雄豪杰、蜂起八荒，纷纷下海造反，群相逐鹿中原。一时间机诡百出，动人心弦的谋略战争竞相展现，英雄难过美人关，霸王、虞姬、刘邦、吕后，上演缠绵悱恻的传奇爱情。胡周早听另一个随从说了缘故，也害怕极了，急忙叫道：那是什么东西？不要拿过来。　“落魄千金”沈锦因为皇帝的赐婚远嫁边关，与“冷血将军”楚修明渐生情愫。为了在全新的环境中赢得尊严、守护爱情，沈锦逐渐褪去张扬任性，对内悉心打理将军府，对外为将士排忧解难，用自己的足智多谋帮助楚修明一起镇守边关，树立了威信。朝局突变，奸人作乱，皇帝对楚家军疑心越来越重，楚修明和沈锦深陷波谲云诡的朝政风云。在历经风风雨雨后，两人在保卫国家安宁的同时也收获了美满的爱情。Siblings Jackson and Angela run a profitable ghostbusting racket; swindling the bereaved with fake detection equipment and Angela's paranormal 'visions'. Hired to investigate a haunted old foster home, the team uncover its terrifying past: young girls brutally slaughtered, mouths stitched shut; silenced by a sadistic killer. And Angela's on the edge - sleepless, strung out and losing her mind, no longer certain what's actually real; convinced she hears the girls crying out to her from the darkness... But supernatural terrors are the least of their problems when they discover the very real evil lurking in the isolated house.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