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1、Nearly 3,500 years agoNearly 3,500 years agoGreek physician Greek physician HippocratesHippocratesTree barkTree barkSalicylic acidSalicylic acidDr Felix HoffmannDr Felix HoffmannPowderPowdertablettabletLawrence CravenLawrence CravenHis report was _.His report was _.ignoredignored1953reduce the risk
2、of heart attackreduce the risk of heart attack1977prevent strokeprevent stroke1953reduce the risk of heart attack1977prevent stroke1988Reduce the risk of some cancers1953reduce the risk of heart attack1977prevent stroke1988Reduce the risk of some cancers2003Reduce blood sugar levelAlexander Flemingblue mould?Ernst Chain&Howard FloreyErnst Chain&Howard FloreyNobel Prize in medicine
