- 问题详情:Itisdifficultfordoctorstohelpapersonwithadamagedbrain.Withoutenoughblood,thebrainlivesforonlythreetofiveminutes.Moreoftenthedoctorscan’tfixthedamage.Sometimestheyareafraidtotrysomethingtohelpbecauseitisdangeroustoworkonthebrain.Thedoctorsmig...
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