語法填空科學家首次用兩只雄性老鼠的細胞培育出小鼠閱讀下面短文，在空白處填入1個適當的單詞或括號內單詞的正確形式。Forthefirsttime,scientistshavecreatedbabymicewithtwofathers.Theydidthis1turningmousestemcellsintofemalecellsinalab.Theresultraisesthedistant2(possible)ofdoingthesameforpeople.Butexpertssayveryfewmouseembryos(胚胎)werebornalive.Theyaddthatnoone3(know)ifthesamemethodwouldworkinhumanstemcells.Scientistsdescribedtheirworkinastudy 4(publish)lastweekinthejournalNature.Theresearcherssaidthebabymiceappeartogrow5(normal)andwereabletobecomeparents 6 (they)intheusualway.Theworkopensupnewavenuesinreproductivebiologyandfertility(繁殖)researchforanimalsandpeople.Inthefuture,forexample,7mightbepossibletoreproduceendangeredanimalsfromasinglemale.Buttheyalsoraisedseveralpossibleproblems.The8(large)oneisthatthemethodisextremelyinefficient.Theysaiditisunclear 9suchasmallnumberoftheembryosplacedintothefemalemicesurvived.Thereasonscouldbetechnicalorbiological.Theyalsosaiditistooearly10(predict)ifthemethodwouldworkinhumanstemcellsatall.Educationaltravelontherise閱讀下面短文，在空白處填入1個適當的單詞或括號內單詞的正確形式。TheChinaTourismAcademyreleasedareportonMonday1(say)thateducationtourismhasbecomepopularamongpeopleofallages.Morethan6millionpeoplejoinedstudytourslastyear,2(high)eventhanthepre-pandemicnumberof4.8millionin2019."Thekey3(different)betweenstudytravelandothertourismproductsisthatstudytravelfocusesonlearningknowledgewhiletraveling,"LuoShugang,directorofthecommittee,saidataforumonMonday.HesaidthatstudytravelcanbedatedbacktotheSong(960-1279)andMingdynasties(1368-1644), 4 manypoetswroteoftheirexperiencesonstudytravels."Thenationformedanindustryforstudytravelduringtheperiodofreformandopening-up,which 5 (see)rapiddevelopmentinthepastdecade,"hesaid,addingthatstudentsinprimaryandmiddleschoolsaresofarthemain 6(participant)ineducationtourism.DaiBin,presidentoftheChineseTourismAcademy,saidattheforumthatthedevelopmentofeducationtourismhaspromotedthe7(society)educationofprimaryandmiddleschoolstudents,whichhasalsoplayed 8 importantroleinblendingcultureandtourism.HesuggestedthatChina9(establish)nationalcampsitesforstudytravelatplaces10 beautifulnaturalviewsandrichculturalheritage.世界上首枚3D打印火箭發射再次失敗閱讀下面短文，在空白處填入1個適當的單詞或括號內單詞的正確形式。Arocketmadealmostentirelyof3D-printedpartsstarted 1 (it)firstflightlateWednesdaybutfailedtoreachorbit.The33-meter-longrocket,calledTerran1,2(take)offfromCapeCanaveral,Florida.ThestartupcompanyRelativitySpacecreated85percentoftherocketusing3Dprintingtechnology.Mostpartscamefromthecompany'slargeprintingcenterinLongBeach,California.Terran1tookoff3(success)andstayedintheairforthreeminutes.Thefirststage,orlowerpart,oftherocketlaunchedandseparated4planned.Theupperstage,however,appearedtoigniteandthenshutdown,sendingitcrashingintotheAtlanticOcean.RelativitySpacehadhoped5therockettostayinorbitforseveraldaysbefore 6 (fall)throughEarth'satmosphereandburningup.ItwasthesecondfailedlaunchbyRelativitySpacethismonth.Thecompanycalledoffanattempt12daysagojustsecondsbeforetakeoff.Thoughtherocketdidnotreachorbit,thecompanysaiditwas 7(please)withthelaunch.Althoughotherspace 8(business)use3D-printedmaterials,thepiecesmakeuponlyasmallpartoftheirrockets.RelativitySpace9(found)in2015bytwoyoungengineers.Thecompanysaiditisworkingtodeveloplargerversionsoftherocket10willhaveevenmore3D-printedmaterial.答案科學家首次用兩只雄性老鼠的細胞培育出小鼠l.by.possibility.knows.published.normally.themselves.it.largest9.why10.topredictEducational