Firstaidmeanstheaidorthehelpthatcanbegiventoaninjure...
问题详情： Firstaidmeanstheaidorthehelpthatcanbegiventoaninjuredpersonfirst．thatis，beforeanyotherhelparrives．Nowadaysthereisusuallyatelephonenotfarawayandthefirstweshoulddo，ifaseriousaccidenthappens,is...