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Cpu startup!When "cracking" the sand pile paradox, we often have to set a fixed boundary. If we say "10,000 grains of sand are a pile of sand", then less than 10,000 grains of sand cannot be called a pile of sand. Then it is somewhat unreasonable to distinguish 9999 grains of sand from 10001 grains of sand. This has to set a variable boundary, but what is this boundary? We don't know now. Then the value of "10,000 grains of sand are a pile of sand" originally set as knowledge will be reduced.02 German Industry 4.0他深吸一口气，对刘黑皮道：去告诉他，张家不敢高攀。云影白了她一眼。Due to the weakness of breathing and coughing, the secretion in the airway is difficult to discharge, which is more likely to cause obstruction, causing bursts of rapid breathing, or the rattling sound in the airway-this is often a strong sign at the end of life, so it is called death guttural sound.　　机敏聪慧的寇老西儿在各方势力包围之下，以其特有的方式逼近了事实的真相…… ©豆瓣