【Thefirstofthe2015NobelPrizeshasbeenannounced．Sweden'sNobelPrizecommitteesaystheNobelPrizeformedicinewillgotoscientistsfromIreland，JapanandChina．WilliamCampbellfromIrelandandSatoshiOmurafromJapansharetheprize】

　　Thefirstofthe2015NobelPrizeshasbeenannounced．Sweden'sNobelPrizecommitteesaystheNobelPrizeformedicinewillgotoscientistsfromIreland，JapanandChina．WilliamCampbellfromIrelandandSatoshiOmurafromJapansharetheprizefortheirdiscoveryofthedrugavermectin（阿维菌素）．TheNobelcommitteepraisedtheirworkonwhatiscalleda"noveltherapy．"Thetreatmentfightsinfectionscausedbyroundwormparasites．TheprizeformedicineisalsogoingtoChineseresearcherTuYouyou．Shediscoveredartemisinin（青蒿素）．Artemisininisadrugthathassharplyloweredthenumberofpeoplewhodiefrommalaria．Thecommitteesaidthediscoverieshadgiventheworldpowerfulnewwaystofighttwopowerfuldiseases．Itissaidthosediseasesaffecthundredsofmillionsofpeopleeveryyear．Thecommitteeaddedthat，"Theconsequencesintermsofimprovedhumanhealthandreducedsufferingareimmeasurable"Ms．TuisthechiefprofessorattheChinaAcademyofTraditionalMedicine．SheisalsothefirstChinesecitizentobeawardedtheNobelPrizeinmedicine．Mr．CampbellcurrentlyworksasaresearcheratDrewUniversityinNewJersey．Mr．Omurahastwodoctoratedegrees----oneinpharmaceuticalscience，theotherinchemistry．HeisaprofessoratHitasatoUniversityinJapan．Doctorsarenowusingavermectintotreatriverblindnessandlymphaticfilariasis（淋巴丝虫病）．Mr．OmuratoldtheAssociatedPressthatthedrugresultedfromasubstance（物质） takenfromamicrobe（微生物）wasfoundonagolfcoursenearTokyo．Theresearchersaidhealwayscarriedaplasticbagsohecouldcollectsoilsamples．Whenaskedifhelikestoplaygolf，hesmiledandsaid，"Yes"．AmemberoftheNobelcommittee，alsospokewiththeAPthattheawardforTuYouyouistheresultofamajorchangeinthewayChinaperformsscientificresearch．HesaysChinahasinvestedalotofmoneyinsuchresearch．Thismemberaddsthattheworkofthethreescientistscanhelpendthehealthriskofdiseasesaffecting3.4billionpeople．IamAnnaMatteo．VOA'sFernRobinsonreportedthisstoryfromWashington．

　　21．Whereisprobablythepassagetakenfrom？___

　　A．Anewspaper B．Anadvertisement

　　C．Aradioprogram D．Afashionmagazine

　　22．WhichofthefollowingisNOTTRUE？___