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9-5 Number of login attempts: In the User class written to complete Exercise 9-3, add an attribute named login_attempts. Write a method named increment_login_attempts () that adds 1 to the value of the attribute login_attempts. Write another method called reset_login_attempts (), which resets the value of the attribute login_attempts to 0.某要塞战区两栖侦察队新到的副队长乔旗是毕业于名牌军事学院侦察专业的研究生，队长于波以骁勇善战著称，在历次比武中屡建奇功。他们接到命令，年底要参加战区侦察兵大比武，选拔参加国际比赛的精兵强将，那是仅有的八分之一次机会。乔旗在学习国际侦察兵教案中获得许多新的训练理念，对忘我工作的于队长触动很大，在训练中，俩人不断磨合成了互补型搭档，也提升了训练的水准，使队员们顺利完成了路程设置、作战、泅渡、反侦察、攀岩、排雷、躲避假设敌等16项演习科目，并取得了好成绩。该剧通过几个现代基层官兵的塑造，折射出军旅生活的不同侧面，以及他们对我军实现机械化、信息化及未来战争的思考。Positive bottom stack mode. The color information in each channel is investigated, and the underlying color is superimposed on the positive film. The principle is the same as the "subtractive principle" in the color mode. The color produced by this mixture is always darker than the original. If there is a positive film stack with black, only black will be produced. Mixing with white will not have any effect on the original color.8. We all belong to Tiger, Goddess 1974 and I 1986. Tiger, tiger, tiger.....分为"Perfect Match 天生一对"(Muk-Push), "Pity Girl 可怜女孩"(Mouse-Nicky-Neen), "Don"t 不要"(Mild-Mek-Victor) , "Boy"s Paradise 男孩天堂"(Sean-Esther) 四个故事组成, 讲述青年男女之间的恋爱故事和复杂心情.胡钧终于抬头，对三人道：你们放心，我胡钧好歹也是一条汉子。Friendly reminder: The above methods are risky, please use them carefully, and please back up important data during operation.