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冷家八个兄弟以情感经历为主线，描写中国当代农民进城打工的故事。冷家八兄弟闯入京城，既兴奋又畏惧，既向往又茫然。靠勤劳，靠忠厚赢得社会承认，得到了世人的尊重。向人们展示了改革三十年来，中国农村向工业化、城市化转移的变迁，及公正、平等对待农民工的故事。只是到底意难平，尤其是后院那些女人们，说话十分难听，刘家婆媳听了十分难堪。但是原来是好朋友。为了不破坏这种关系，必须尽快打倒魔王恢复原来的样子。Since the market pricing of stocks is determined by the combination of market group expectations and emotions, even investors who are excellent in individual stock research always face the impact of unexpected fluctuations. The choice that can be made for this investment may be either to take advantage of (capital and system advantages), or to admit one's mistake (to find that one has made a major mistake in his judgment of the enterprise), or to endure (to lose the ability to use but not to feel that one has made a mistake), and there is no other way.暂时歇歇脚吧，他实在不想再顺水漂流了，也不想在树上睡觉了，更不想被拐子拐了去。天生的聪明和开朗的性格，相对简单地推进人生的棋子的一条廉。It is easy to see that OvR only needs to train N classifiers, while OvO needs to train N (N-1)/2 classifiers, so the storage overhead and test time overhead of OvO are usually larger than OvR. However, in training, each classifier of OVR uses all training samples, while each classifier of OVO only uses samples of two classes. Therefore, when there are many classes, the training time cost of OVO is usually smaller than that of OVR. As for the prediction performance, it depends on the specific data distribution, which is similar in most cases.