Is to define a main method calculate in the AbstractCalculator class, calculate () calls spilt (), etc. Plus and Minus inherit the AbstractCalculator class respectively, and implement the call to subclasses through the call to AbstractCalculator, see the following example:
《兄弟营》是由海顿执导，海顿、翁虹、赵恒煊、杨峰等主演的战争剧 。
Netflix宣布续订#十三个原因##13 Reasons Why#第三季。
公报私仇？哼。
Magic Attack +28 (Online +33)
Browser plug-in to help complete file upload. Depending on the browser, the plug-in type may be ActiveObject or WebkitPlugin. Upload is an asynchronous process, so the control will constantly call a global function provided by javascript, window.external.upload, to inform javascript of the current upload progress. The control will insert the current file state into window.external.upload as the parameter state. A complete upload plug-in cannot be provided here. SetTimeout will be simply used to simulate the upload progress of the file. The window.external.upload function is only responsible for printing some logs in this example:
和平年代，不需要再打打杀杀，但是千万不要忘了一句话：忘战必危。
同样使心计，她比你的世子妃要聪明高明多了，懂得顺势而为，善用人心。
9-4 Number of diners: In the program written to complete Exercise 9-1, add an attribute named number_served and set its default value to 0. Create an instance named restaurant from this class; Print how many people have eaten in this restaurant, then modify this value and print it again. ?
《找不到正确答案》25岁人生中谈过4次恋爱，写了4本的恋爱错题笔记，女主能找到想要的正确答案嘛？
When selecting time relays, the following rules can generally be followed:
2. Please turn off the iPhone now, and then you will hear the prompt that the computer is not connected successfully.
喝毕，抹一下嘴边的水渍，笑道：好畅快。
一天之内一群人围绕古玩发生的一连串啼笑皆非的故事。
位CIA探员意外身亡，在知名神经学家（汤米·李·琼斯 Tommy Lee Jones 饰）的协助下，他的记忆与技能被植入一位极度危险且无法预测的罪犯（凯文·科斯特纳 Kevin Costner 饰）身上，而探员（瑞恩·雷诺兹 Ryan Reynolds 饰）必须靠这位不定时炸弹 来完成一项重要的秘密任务。
If these two skills are released immediately after carrying the recommended CD, the output of the blood river can be significantly increased.
延续第一季魔人世界，镜头从雅加达后巷转向曼谷霓虹街头，描述一位生性固执的研究人员朱丽叶，企图揭发生活在你我之间的秘密邪恶世界，同时寻找具有庞大力量的古物。
The second classification principle of organisms is the lineage classification principle aiming at establishing evolutionary lineage. The classification method following this principle is called lineage classification. The representative of pedigree classification is "branch systematics". It advocates that the branches in evolution should be taken as the criteria for identifying and distinguishing classification units and the basis for determining the pedigree relationship of each classification unit. The so-called co-ancestral proximity (similar to a group of people being a grandfather) is used to measure the genetic relationship between different taxa and determine their position in the pedigree. The classification system finally established is an evolutionary pedigree reflecting the history of phylogeny, which is a deeper description of biological relationship. In other words, the basic principle of pedigree classification is that the classification system conforms to the evolutionary pedigree. Pedigree classification is only applicable to organisms and cannot be used for abiotic classification.
