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据资料显示:血液中酒精浓度如果达到0.5毫克/毫升及以上标准时,人将会出现记忆力衰退、精神恍惚,严重时有致命危险。
According to statistics: If the blood alcohol concentration reached 0.5 mg / ml and above standards, people will have memory loss, trance, serious when a fatal danger.