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Winter sports in which people use ice skates to skate on ice. Originated in Holland in the 10th century. Skating sports include speed skating, short track speed skating, and figure skating.This paper summarizes three attack technologies against artificial intelligence systems-antagonistic input, data poisoning attack and model stealing technology. Specific examples and defense strategies are added to the discussion of each attack, aiming at providing an overview for all those who are interested in using artificial intelligence for anti-abuse defense.就听他接道：什么富贵贫贱？若是王家有事，皇上未必会心急。相传清朝末年，有两位状师，一位姓洪、一位姓贺，这两位状师原是一对惺惺相惜的同门师兄弟，后来因为一桩轰动全国的公案，因而反目成仇。师弟洪状师应用奸计获得胜诉，威名远播、天下皆知，更获得皇上封为“天下第一状”，并御赐匾额一块，而这块匾额于是成为洪家的镇家之宝。师兄贺状师却因中计失败，沦为公堂之笑柄，威名更是一夕扫地，贺家也因此而家道中落，贺状师更是因此而抑郁而终，临死仍想夺回那“天下第一状”的封号。就这样，两家的恩怨自此展开……步入星空步入星空步入星空步入星空遭遇车祸的小欣伤愈后回到家中，却对以前的事失去了记忆，但不时地心中模糊地会想到一个人，那个人到底是谁？小欣为什么会念念不忘？Here we notice that the instance of FirstActivity is a2C5349 at the beginning, then jump to SecondActivity, which is always 5d5dd2a, and the two interfaces of taskId are the same. Finally, we pressed the return key once in SecondActivity, and directly returned to the original 5349 instance interface, that is, the first interface, as shown in the following figure: