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Starz拉丁裔题材半小时新剧《Vida》讲述了来自洛杉矶东区两个墨西哥裔美籍姐妹Emma和Lyn，两人大不同之余还很疏离。当现实让她们必须回到小时候生活的街区后，她们在那里找到了关于她们母亲的过去和惊人的真相。Mishel Prada饰演Emma，与自己的姐妹和母亲都很疏远，非常不愿意回家参加母亲的葬礼及处理家族产业。Melissa Berrera饰演Lyn，一个无忧无虑的派对女孩，已经在旧金山湾区过上了没有烦恼的生活。(1) Two vertical ring lamps, green at the top and white at the bottom, or a number consisting of two cones vertical at the top and bottom and butted at the tip;How to handle reports from headquarters in different places?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(3) MvM