问题详情

完成下列各选项Batteriescanpoweranythingfromsmallsensorstolargesystems．Whilescientistsarefindingwaystomakethemsmallerbutevenmorepowerful,problemscanarisewhenthesebatteriesaremuchlargerandheavierthanthedevicesthemselves．UniversityofMissouri(MU)researchersaredevelopinganuclearenergysourcethatissmaller,lighterandmoreefficient．"Toprovideenoughpower,weneedcertainmethodswithhighenergydensity(密谋)",saidJaeKwon,assistantprofessorofelectricalandcomputerengineeringatMU．"Theradioisotope(放射性同位素)batterycanprovidepowerdensitythatismuchhigherthanchemicalbatteries．"Kwonandhisresearchteamhavebeenworkingonbuildingasmallnuclearbattery,presentlythesizeandthicknessofapenny,intendedtopowervariousmicro!nanoelectromechanicalsystems(M/NEMS)．Althoughnuclearbatteriescancauseconcerns,Kwonsaidtheyaresafe．"Peoplehearthewordnuclearandthinkofsomethingverydangerous,"hesaid,"However,nuclearpowersourceshavealreadybeensafelypoweringavarietyofdevices,suchaspace-makers,spacesatellitesandunderwatersystems．"Hisnewideaisnotonlyinthebatteryssize,butalsoinitssemiconductor(半导体)．Kwonsbatteryusesaliquidsemiconductorratherthanasolidsemiconductor．"Thekeypartofusingaradioactivebatteryisthatwhenyouharvesttheenergy,partoftheradiationenergycandamagethelatticestructure(晶体绘声绘色)ofthesolidsemiconductor,"Kwonsaid,"Byusingaliquidsemiconductor,webelievewecanminimizethatproblem．"TogetherwithJ．DavidRobertson,chemistryprofessorandassociatedirectoroftheMURe-searchReactor,Kwonisworkingtobuildandtestthebattery．Inthefuture,theyhopetoincreasethebatteryspower,shrinkitssizeandtrywithvariousothermaterials．Kwonsaidthatbatterycouldbethinnerthanthethicknessofhumanhair．WhichofthefollowingisTRUEofJaeKwon？
A.HeteacheschemistryatMU．
B.Hedevelopedachemicalbattery．
C.Heisworkingonanuclearenergysource．
D.Hemadeabreakthroughincomputerengineering．
请帮忙给出正确答案和分析，谢谢！