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笨和聪明均与大脑有关,脑细胞的活动必须有充足的氧气和葡萄糖的供应,如果有呼吸、循环障碍就会造成脑细胞缺氧,倘若
Stupid and smart are related to the brain, brain cell activity must have adequate oxygen and glucose supply, if there is breathing, circulatory disorders can cause brain cells hypoxia, if