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　　一个微妙的转折发生在银河帝国建国后的12020年。哈里·谢顿，这个刚满32岁的年轻数学家，开创了“心理史学”，这门学科能用数学公式准确推演全人类的未来——“预言”从此成为一门可以信任的科学，人类由此可以看见未来..."This time we can get that position out of danger, All by one radio station, At that time, we used rifle butts, stones, bayonets and even belts and helmets to fight these rats hand to hand. But I can't, There are too many of them, And you can take care of the earth and not the sky, Either killed by a big mouse or stung by a big wasp, Even some soldiers were anxious and hugged with big rats. And bite it with his teeth, However, this will not change the overall situation at position 149, which is very unfavorable to us. So it didn't last long, Seeing that the position was about to fall, The impression is that a person in our company, Should be a company correspondent, He sent the message directly to the back on the radio. Request the artillery to cover position 149, To live or die with the position in the way of "firing at me", Because I was very close to him, So I could hear what he was shouting, I thought I wanted to die bravely, But in the end, Through the superior order he conveyed, The response we got was to evacuate us to a hillside due north of position 149 in 3 minutes. This means that we have to give up the defense of the main position for the time being. To be honest, He had already killed the red eye, No one wants to withdraw, Watching his comrade-in-arms get along with him day and night be stung to death by a big wasp, I was killed by a big mouse, and I was always left with a dead body. All of them were bent on killing one more one to avenge their comrades. I remember very clearly that I saw with my own eyes that at least three comrades had been bitten off their arms and necks by that big mouse. One of them had his stomach bitten through and his intestines flowed all over the floor, but they were still fighting.清秀妹子点点头，然后眼中略带八卦的说道：郭襄好像喜欢那个杨过，张三丰又喜欢着郭襄，真不知道当年他们之间发生了什么？好吧，女生天生就带着八卦属性。信中措辞得当，甚至能感觉到那种声泪俱下，行书用的也是正楷，工工整整，完全不是之前草书的样子，别说赵文华，谁看了这封信都会理解杨长帆的处境。In this environment, silence has almost become an act of assisting in crimes. Therefore, although CSO people adopt a "non-violent and non-cooperative" attitude towards sharing information, we still try to collect some information through some insider meetings and interviews to understand how security experts originally helped these victimized enterprises to build defense mechanisms. In this way, we have summed up the following tips for readers and friends to deal with DDoS attacks.