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
The solder short-circuit point has a trace width of 20mil-40mil and a spacing between pads of 10mil-15mil. Shapes can be found in "
……胡宗宪奏折送上去了两天，不见皇上的态度，也没得召见。
巴黎某一学校里，某班学生在考试时，一些男生互相传阅着一副美女画片，传到安托万·多尼尔时被老师发现并受到了的惩罚。回到家后，父母都不在，安托万正准备写作业时，母亲回家了，她粗声粗气地叫安东尼去买面粉。他买了面粉后，和继父一起回家并吃晚饭，但父母似乎对他都不怎么温柔，而且父母之间关系也并不十分融洽。
入乡随俗，古代认为生产血腥不吉利，不让男子进入，尹旭也无可奈何。
我记得。
Article 22 [Personal Obligation] Insured persons and medical assistance objects shall abide by the following provisions when using medical insurance funds to see doctors and purchase drugs:
皇上刚才还说，连江山都打下来了，难道连争取一个女子都不敢试一试。
愤青这就不服了，凭什么啊就没听见。
Purple red: loquat, banyan, cactus fruit
虞姬的脸上的泪水干了，lù出微微的笑容，不一会儿却又泪流满面，项羽的埙不知何时已经停了，但是虞姬翩翩舞姿依旧未停……项羽眼中含泪，缓缓yín道：力拔山兮气盖世，时不利兮骓不逝。
11. Interpreter mode
《你们被包围了》以江南警署为舞台，以四名重案组新人在组长指导下成长并展开一连串精彩搜查为背景，讲述外形帅酷、外冷内热的高智商新人警察殷大邱，与一名呆萌善良、纯真深情的美丽新人女警鱼秀善之间恩怨缠绵的青春罗曼史，并伴随动人心弦的案件侦破及人物的感人成长历程
——花开花落，花落花开。
悬崖之下，小鱼儿几经生死，最后还是因祸得福，得到了一个宝藏。
Now let's add teammates to the game.
