Unit21HumanBiologyLesson3EpidemicsExplainedLookattheKeyWords.Whichofthesediseasescanbeepidemic?AIDSCancerHeadacheFluHeartdiseaseStomachacheTBEpidemics:Workinpairs.Doyouthinkthesestatementsaretrue(T)orfalse(F)?1.TBandflukillmillionsofpeopleeveryyear.2.Mostofdiseasesareverynew.3.Epidemicshaveaffectedh...

时间:2024-11-20 08:39栏目:中学教育