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　　谁也没想到，在一片称贺人群中，随着凄凉叫喊声，闯进B. Women's swimming: 50m freestyle, 100m freestyle, 200m freestyle, 400m freestyle, 800m freestyle, 100m backstroke, 200m backstroke, 100m breaststroke, 200m breaststroke, 100m butterfly, 200m butterfly, 200m medley, 400m medley, 4x100m freestyle relay, 4x200m freestyle relay, 4x100m medley relay; Diving: 3m springboard, 10m platform, synchronized 3m springboard, synchronized 10m platform.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为了帮助王子艾利克斯解开魔咒，灰姑娘艾拉带着魔法师莉莉，以及沃尔特和曼尼两只老鼠朋友再度出发寻找生命宝石，但朋友莉莉却在冒险中为了保护艾拉而牺牲，拿回生命宝石的艾拉面临着一个选择，究竟是帮助王子，还是救回朋友？在单体战力足够强大的情况下，你纵有百万大军也只能干着急。(Tickets purchased at the ticket vending machine are green on the top and tickets purchased at the manual window are orange on the bottom)Squat belts are generally 8 or 9 holes. The identification of the use range of the belt generally refers to the inner circumference range from the first hole to the last hole after being buckled. When choosing a belt, you can calculate it according to your usual abdominal circumference. The natural abdominal circumference is minus 5 cm-10 cm, so that the result falls around the middle of the belt's use range (the fourth or fifth hole). Minus 5 or minus 10 depends on the individual's situation. If you are thinner or not tied too tightly, minus 5; If you are fatter or accustomed to tightening, minus 10.