- 问题详情:In1930,ayoungAfricanAmerican,VivienT.Thomas,aprofessionalcarpenter,washiredasalabassistantbyafamouswhitedoctornamedDr.AlfredBlalock.Althoughhe 36wenttocollege,hehadanenormous 37 tolearnandexplorethepowerofknowledge.WheneverDr.Blalocklefthi...
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