2. Os.getcwd ()--Gets the current working directory.
On the morning of May 15, 2013, Aunt Liu was busy in the kitchen early. This morning, her son and daughter-in-law had an appointment to go home for breakfast. After waiting for a long time and seeing no one, Aunt Liu called the couple. As a result, both phones were turned off. Aunt Liu waited until more than ten o'clock. When the food was cold, she did not say anything about her son and daughter-in-law. Aunt Liu was a little panicked and hurried to her son's house. She pushed her son's door and found that the door was left unlocked. When she approached the door, she found no one in the living room. "What's the matter with you? Your cell phone is turned off!" Aunt Liu shouted loudly, but no one answered. She could only continue to walk to the bedroom. "What did I say you were doing?" Aunt Liu knocked on the bedroom door and asked, but no one answered. She pushed open the bedroom door and saw that the bed was clean and the couple was not at home. In addition, she did not find anything unusual at home. However, when she turned around and came out, the scene in the yard frightened her to disgrace. In the yard, the son's dog fell into a pool of blood. A blood hole was cut out of his head and thrown into the corner of the wall. The bricks beside him were covered with blood. Seeing that the ground was covered with blood, Aunt Liu collapsed with fear and called 110 to call the police.
人群转望过去，纷纷让开，又来了一位野路子的。
你想，祖宗们在地下睡得好好的，被人翻尸出来，不是好难受？所以说，挖人祖坟是好缺德的事儿，只有特别恨一个人，才会骂这样的话，干这样的事。
青麦坐在车辕上，疑惑地看着两个身影消失在雪林深处，不知王爷去墓地干啥，难道要去拜访死人？很快，板栗来到张家老宅旧址，如今是那些雇工的墓地。
现在，三人所选择的恶劣的爱情开始了！
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.
板栗松了口气，他就说么，赵锋再浑，也不会干出杀人放火的勾当，误伤人命倒是有可能。
杨长帆借坡下驴：就为了这个脸面，不惜葬送整个京城么？。
片中的电影剧组汇聚了本·斯蒂勒饰演的著名动作明星、小罗伯特·唐尼饰演的曾三次获得奥斯卡奖的演技派影星和杰克·布莱克饰演的以一人分饰多角为特色的流行喜剧演员。唐尼饰演的演技派明星为了挑战自己的演技决定将自己全身涂黑出演越战中的黑人角色。然
怔了一会，小娃儿嘴一瘪，又哭了起来。
Arbor Networks' Pravail Availability Protection System (APS)
但他天生体能优异，身材也很好。
在一个名叫特尼镇的所在，鸟语花香，草木清新，生活富足，只是这些都是表面的假象，所有的树木都由人工材料做成，并通过电脑和电力维持运作。虽然空气质量糟糕，可是当地的人民乐于享受这便利的现代化生活，更何况有欧海尔先生（Rob Riggle 配音）为他们提供新鲜的桶装空气呢！小青年泰德（扎克·埃夫隆 Zac Efron 配音）暗恋美丽的姑娘奥黛丽（泰勒·史薇芙特 Taylor Swift 配音），为了帮助女孩实现见到真正树木的梦想，他铤而走险离开特尼镇，来到满目疮痍、阴霾污浊的外部世界寻找传说中知晓关于树木一切信息的老万。从老万口中，泰德了解到这个曾经的成功商人以及当初棉花树满布的乐园变成荒山的全过程。乐土从此一去不返，除非……
娱乐界赫赫有名的经纪企划公司大老板世勋，偶然间遇到了不食人间烟火的山村姑娘伊玲，认为伊玲是个难得的明星材料，各种穷追猛打要将她收纳为自己公司的旗下艺人，而伊玲从小深受儒家教育思想熏陶，对做明星丝毫不感兴趣。两个性格如同水火一样的男女就此展开一段奇妙的缘分。世勋突然恍然大悟自己和伊玲不是伯乐和千里马的关系，而是从最初就是一见钟情。为了自己心爱的那个她，他展开了一段由“王子”变身“屌丝”的历程。
这两天，网络上甚至还出现了不少这样的提问，秦始皇就是赵盘吗？、怎么大家都说项羽的父亲是项少龙？项少龙是谁，为什么我上历史课的时候，没有听过这个人？……《寻秦记》在现实中的人气，或许比《笑傲江湖》《绝代双骄》等武侠低一点，但是在网络上的人气，绝不会比这两者差。
I ask no favors for my sex… All I ask of our brethren is that they will take their feet from off our necks.
居沐儿原本闲逸的生活因师父师伯音含冤枉死而瞬息万变，并因此双目失明，误打误撞之下闯入京城首富龙跃的生活中。居 沐儿决心替师父昭雪沉冤，岂料接二连三的案件将二人牵扯其中。居沐儿一面查案，一面遭已婚男子逼婚，为求善了，主动提出与龙跃协议成婚。然朝夕相处中，二人渐生情愫，居沐儿不想师父的案情牵连龙家，便设计让龙跃产生误会从而休妻。事后龙跃得知真相，二人再结姻缘。随着调查深入，案情越发扑朔迷离，居沐儿险遭灭口，龙家也陷入前所未有的困境。二人心系彼此，却不得不为了对方暂且和离，共同对敌。当真相大白一切都尘埃落定，龙跃再次迎娶三嫁于他的居沐儿，终于幸福相拥。
Now you can do some tests:
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