根据以下材料，回答42-46题
it' s onE oF our Common BEliEFs thAt miCE ArE AFrAiD oF CAts. sCiEntists hAvE long known thAt EvEn iF A mousE hAs nEvEr sEEn A CAt BEForE, it is still ABlE to DEtECt ChEmiCAl signAls rElEAsED From it AnD
&nBsp;run AwAy in FEAr. this hAs AlwAys BEEn thought to BE somEthing thAt is hArD-wirED into A mousE' s BrAin.
But rECEntly wEnDy ingrAin, A grADuAtE stuDEnt At thE univErsity oF CAliForniA, BErkElEy, hAs ChAl-lEngED this Common sEnsE. shE hAs FounD A wAy to "CurE" miCE oF thEir inBorn FEAr oF CAts By inFEC-ting thEm with A pArAsitE, rEportED thE sCiEnCE journAl nAturE.
thE pArAsitE, CAllED toxoplAsmA gonDii, might sounD unFAmiliAr to you, But thE shoCking FACt is thAt up to onE-thirD oF pEoplE ArounD thE worlD ArE inFECtED By it. this pArAsitE CAn CAusE DiFFErEnt DisEAsEs Among humAns, EspECiAlly prEgnAnt womEn--it is linkED to BlinDnEss AnD thE DEAth oF un-Born BABiEs.
howEvEr, thE pArAsitE' s EFFECts on miCE ArE uniquE. ingrAin AnD hEr tEAm mEAsurED how miCE rEACtED to A CAt' s urinE (尿) BEForE AnD AFtEr it wAs inFECtED By thE pArAsitE. thEy notED thAt normA
l miCE stAyED FAr AwAy From thE urinE whilE miCE thAt wErE inFECtED with thE pArAsitE wAlkED FrEEly A-rounD thE tEst ArEA.
But thAt' s not All. thE pArAsitE wAs FounD to BE morE powErFul thAn originAlly thought—EvEn AFtEr rEsEArChErs CurED thE miCE oF thE inFECtion, thEy no longEr rEACtED with FEAr to A CAt' s smEll,whiCh CoulD inDiCAtE thAt thE inFECtion hAs CAusED A pErmAnEnt ChAngE in miCE' s BrAins.
why DoEs A pArAsitE ChAngE A mousE' s BrAin instEAD oF mAking it siCk likE it DoEs to humAns?
thE AnswEr liEs in Evolution. toxoplAsmA gonDii CAn only rEproDuCE insiDE A CAt. so thE pArAsitE hAD to DEvElop A wAy oF triCking thE miCE into gEtting EAtEn morE EAsily--thus hElping itsElF go insiDE A CAt--By tAking AwAy miCE' s sEnsE oF AlArm.
42[单选题] &nBsp;thE pAssAgE is mAinly ABout__________. 查看材料
A. miCE' s inBorn tError oF CAts
B. thE Evolution oF toxoplAsmA gonDii
C. A nEw story, ABout thE EFFECts oF A pArAsitE on miCE
D. A hArmFul pArAsitE CAllED toxoplAsmA gonDii
43[单选题] &nBsp;thE unDErlinED pArt "hArD-wirED" in pArAgrAph 1 proBABly mEAns__________. 查看材料
A. DEEply rootED&nBsp;
B. quiCkly ChAngED
C. ClosEly linkED&nBsp;
D. DEEply BuriED
44[单选题] &nBsp;thE ExpErimEnt FounD thAt miCE inFECtED with toxoplAsmA gonDii__________. 查看材料
A. stAyED FAr AwAy From CAt' s urinE
B. movED ArounD thE ArEA FrEEly AnD FEArlEssly
C. BECAmE morE sEnsitivE to CAt's smEll
D. wErE morE AFrAiD oF CAts
45[单选题] &nBsp;whiCh oF thE Follow stAtEmEnts is truE ACCorDing to thE pAssAgE? 查看材料
A. toxoplAsmA gonDii CAusE pEoplE to DEvElop strAngE AnD DEADly DisEAsEs.
B. with CErtAin inFECtions, thE inFECtions DisEAsE CAn't BE CurED ComplEtEly.
C. humAn BEings inFECtED By toxoplAsmA gonDii will hAvE pErmAnEnt BrAin DAmAgE.
D. toxoplAsmA gonDii is hArmFul to humAn BEing, But it DoEs no hArm to miCE.
46[单选题] &nBsp;thE Author's AttituDE towArDs thE ExpErimEnt is__________. 查看材料
A. positivE&nBsp;
B. suBjECtivE
C. nEgAtivE&nBsp;
D. oBjECtivE