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
得知苏丽丽怀了自己前男友的孩子，苏陌雪和易家的婚约被取消并惨遭分手，而这一切都是苏丽丽和后妈的谋划。凌墨琛即将担任凌氏董事长，但却被告知必须要已婚，实则是爷爷着急抱孙
Polylactic acid (PLA) is a new bio-based and renewable biodegradable material, which is made of starch raw materials proposed by renewable plant resources (such as corn). Starch raw materials are saccharified to obtain glucose, then glucose and certain strains are fermented to produce high purity lactic acid, and polylactic acid with certain molecular weight is synthesized by chemical synthesis method. It has good biodegradability, can be completely degraded by microorganisms in nature under specific conditions after use, and finally generates carbon dioxide and water without polluting the environment, which is very beneficial to environmental protection and is recognized as an environment-friendly material. This thing is actually a long piece, and then "curled up" in it and wrapped in a cylinder shape. What's the use? You will see it in a short time.
不单单是相里氏的存在，他们还救出了魏无忌恩德家人，想来子孙也在其中，早已长大，自然会有所想法。
> > >
为了追星，于佑彤引发出一连串的乌龙事件，也殃及梦想成为大明星的武打替身孙帆（陈楚河饰演），因误会方子浩企图染指他浮沉在娱乐圈边缘的小模女友星野真（田中千绘饰演），而将方子浩痛打了一顿。
Aviation units mainly carry out tactical training, combined with combat missions, focusing on combat technology and tactical application training to improve their ability to carry out missions under complex conditions. Every year, tactical, technical, theoretical and physical assessment is organized, and flight grade assessment is carried out, and pilots of Grade I, II and III are respectively assigned. The purpose of aviation unit training is to enable each pilot to master the combat technology of advanced aircraft and be able to undertake combat missions.
一个新的Y系列情景喜剧系列，打破了这个世界上所有的规则。将在今年四月扰乱所有人。快来加入这间很棒的公寓吧。
她走后一个时辰，门房报说，青山书院山长、清明书生田清明求见老王爷。
But then again, It is not entirely true to say that the fire cut-off at position 142 is exactly the same as that at position 169. Because in addition to the large consumption of ammunition, There is also a major reason: It was at that time that some comrades of the reconnaissance troops found out that the Vietnamese army had failed to sneak attack. Pull a large number of large caliber artillery prepared in advance out of the woods, Prepare to support the infantry that stormed various positions. After this message is delivered to the rear, The first task of our artillery group changed from blocking the Vietnamese attack to suppressing and destroying the Vietnamese artillery group. The two sides started an artillery battle over this, Although it is said that our artillery is not only in terms of performance but also in terms of quantity, Both of them had an overwhelming advantage, coupled with the precise positioning of the comrades of the reconnaissance troops, so it took 20 minutes to complete the complete elimination of the Vietnamese artillery group. Later, I also saw in a military magazine that when the artillery battle was the most intense, some artillery comrades who pulled the bolt swollen their arms. It is conceivable how fierce the fight was. " Li Haixin said.
永平帝坐在宽大的紫檀桌案后，目光炯炯地望着跪在前方大理石地面上的官员，静候回禀。
我安排他跟别人一起出去，也是想让他好好历练的，你带伤跟着去，倒叫本队于心不忍了。
Dan Levy及Doug Robinson负责的多镜头喜剧《父母债后辈偿 Indebted》（项目原计划为单镜头喜剧，但被NBC要求改变）主角为一对夫妻Dave及Rebecca，他们得协助Dave父母Elliot及Linda偿还两老因财务管理不善的债务。 Adam Pally饰演善良的Dave﹑Abby Elliott饰演Rebecca。Jessy Hodges饰演Dave的妹妹﹑ Amer Padha-Chatel饰演Dave的商业拍档。Fran Drescher饰演Linda，她是个喜爱孩子﹑孙儿，以及经常提醒别人她来自布鲁克林的人。Steven Weber饰演Elliot，是个乐观的销售员。
只是如此，便要受到天庭奴役，一量劫不得翻身，五十六亿年后才能解脱。
多大的事。
赵向阳和赵向东都上高三，两兄弟的性格完全不同。哥哥向阳温顺乖巧，是老师宠爱的好学生。弟弟向东学习成绩也很好，性格耿直，从小喜欢舞刀弄棒，曾是市里的少年散打亚军。向东暗中喜欢同年级且又是邻居的漂亮女生徐美萍。可美萍喜欢的却是哥哥向阳。由于美萍的父母早亡，美萍一直是百家饭长大，尤其是和赵家关系甚好。
故事的主角是一个名为本田的骷髅，提到书店店员想到知性温文尔雅的大姐姐只是单方面的妄想罢了，骸骨本田作为书店店员每天最大的工作任务就是不断的补充新刊，保证书店的店面上永远都有最新的书籍供读者选择购买，而在日本的特殊出版环境下，本田桑最为头疼的一件事就是一脸无知的外国人拿着 R18 本子来收银台结账，遇到好奇的外国人本田桑还不得不向外国糙汉解释啥叫“YAOI”？
4席国风合伙人，70位青春国乐手，跨界联手，破圈合作，音乐合伙，形成每个战队鲜明的音乐风格，产出更具市场潜力的国乐作品，最终诞生出一支潮流国乐团。
因此在这段风云跌宕的岁月里，一直处于默默无闻的游荡之中。
《谷城》讲述的是全罗南道谷城郡一个村庄里发生的故事，因为一个诡异的日本人的到来，村子里发生了奇怪的事情，追查真相的刑警和帮助他的道士一起试图揭开谜底。该片也是二十世纪福斯 公司投资发行的新作，备受电影界的瞩目。
