首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
若关于x的一元二次方程kx2﹣6x+9＝0有两个不相等的实数根，则k的取值范围（ ）
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
如果关于x的一元二次方程kx2﹣3x﹣1=0有两个不相等的实根那么k的取值范围是.
若关于x的一元二次方程kx2+4x﹣2=0有两个不相等的实数根则k的取值范围是.
求证无论k取任意值关于x的一元二次方程x2﹣kx+k﹣2=0一定有两个不相等是实数根.
若关于x的一元二次方程kx2﹣2x﹣1=0有两个不相等的实数根则k的取值范围是.
若关于x的一元二次方程kx2﹣2x﹣1=0有两个不相等的实数根则实数k的取值范围是.
如果关于x的一元二次方程kx2﹣6x+9=0有两个不相等的实数根那么k的取值范围是
k＜1
k≠0
k＜1且k≠0
k＞1
若关于x的一元二次方程k﹣1x2+2x﹣2=0有两个不相等的实数根则k的取值范围是.
若关于x的一元二次方程x2－4x－m=0有两个不相等的实数根则实数m的取值范围是_________.
关于x的一元二次方程kx2－x＋1＝0有两个不相等的实数根则k的取值范围是_______.
若关于x的一元二次方程k﹣1x2+2x﹣2=0有两个不相等的实数根则k的取值范围是
.若关于x的一元二次方程k﹣1x2+2x﹣2=0有两个不相等的实数根那么k的取值范围是
若关于x的一元二次方程kx2﹣6x+9=0有两个不相等的实数根则k的取值范围
k＜1且k≠0
k≠0
k＜1
k＞1
若关于x的一元二次方程kx-2x-1=0有两个不相等的实数根则k的取值范围是
若关于x的一元二次方程2x2+bx+3=0有两个不相等的实数根则b的值可能是
关于x的一元二次方程kx2﹣x+1=0有两个不相等的实数根则k的取围.
关于x的一元二次方程kx2-6x+1=0有两个不相等的实数根则k的取值范围是
k≥9
k<9;
k≤9且k≠0
k<9且k≠0
若关于x的一元二次方程kx2﹣2x﹣1=0有两个不相等的实数根则k的取值范围是.
若关于x的一元二次方程kx2﹣2x﹣1=0有两个不相等的实数根则实数k的取值范围是.
关于x的一元二次方程kx2﹣2x+1=0有两个不相等的实数根则k的取值范围是.
已知关于x的一元二次方程kx2+2x﹣1=0有两个不相等的实数根则实数k的取值范围是
热门试题
更多
2分World'sTop5TallestBuildings 26.HowmanyfloorsdoesShanghaiTowerhave? A.101 B.120 C.121 D.163 27.Whichbuildingistheoldestofthefivebuildings? A.VurjKhalifa B.ShanghaiWorldFinancialCenter C.AbrajAlBai D.Taipei101
1分﹣﹣﹣﹣Ijoinedinthe2017NanjingMarathon马拉松raceIcouldn'trunasfastasareal athlete ﹣That'sreallygreat!Youaremyhero! A.though B.until C.unless D.if
1分Nanjingabeautiful城市isthecapitalofJiangsuProvince.
1分Afterthemeetingthetwocompaniesworkedmoreclosethanbefore.
1分﹣Andywouldyoupleasethereportformeandseeifthereisanymistake? ﹣OfcourseIwill. A.lookaround B.lookthrough C.lookup D.lookafter
1分ThereareseveralCanadaworkinginourfactory.Theyarefriendlyandhelpful.
1分﹣CouldyoupleaseshowmewhichboyinthepictureisPatrick? ﹣TheonearedT﹣shirt. A.in B.at C.of D.with
1分﹣Doyouthinkyoucandothattaskwithouthelp? ﹣.Thisisnotthefirsttimeforme. A.Takecare B.Hurryup C.Notexactly D.Don'tworry
1分Itisreallyworth提及thatNanjinghaswonthebidof2018badmintonworldchampionships.
1分﹣﹣Mikecanyouexplain? ﹣﹣I'msorryMum.Iwaslisteningtomusicanddidn'thearit. A.whyeverythinginthehouseisinamess B.whynobodyansweredthephonewhenIcalledyou C.howyoucanfinishthehomeworkinsuchashorttime D.howyoucanmaketherobotworksincethereisnobattery
1分﹣Mindyourstep!Someonefelloverbecauseofthewetflooryesterday. ﹣. A.Noway B.Forgetit C.Don'tmentionit D.Thankyoufortellingme
1分Tombecamethebossofthiscompanyinhistwenty.
5分TheBritishgovernmenthasstarteda￡10millionMandarinExcellence普通话优秀Program.Theprogramwillseeover5000Britishstudentstowardsfluency流利inMandarinChineseby2020. TheprogramisledbylocalschoolsandsupportedbyUniversityCollegeLondon.Sofar14schoolshavetakenpartintheprogram.HundredsofsecondaryschoolstudentsinEnglandhavetakenlessonsinMandarinChinese.OverthenextthreeyearstheywillspendeighthoursstudyingMandarinChineseeveryweek. NickGibbisanofficeroftheBritishgovernment.HesaidahighleveloffluencyinMandarinChinesewouldbecomemoreandmoreimportant.Languageskillsareimportantforjobsandlife.MandarinChineseisspokenbythelargestnumberofpeopleintheworld.Itisalsooneofthelanguagesthatmattersthemosttoourcountry'sfuture.IftheUnitedKingdomwantstoremaincompetitive竞争的intheworldwedoneedfarmoreofouryoungpeopleleavingschoolwithagoodcommand精通ofMandarinChineseGibbadded.Wehopethatouryoungpeoplecouldbegiventhechancetostudythelanguage.WewantthemtobefluentinbothspokenandwrittenMandarin.TheMandarinExcellenceProgramwillhelpusdothis.Itwillnotonlyopenthestudents'eyesbutalsogivethemagreatadvantagewhentheyentertheworldofwork. Britishkidsinfactarenotalone.InAmericaabout200000studentsarestudyingMandarinChinese.Itisbelievedthat800000morewilljointhemoverthenextcoupleofyears. 31.ThemainsupporteroftheMandarinExcellenceProgramis. A.theAmericangovernment B.localschools C.UniversityCollegeLondon D.theBritishParliament 32.AccordingtothearticleaboutstudentsinAmericawillstudyMandarinChineseoverthenextcoupleofyears. A.5000 B.200000 C.800000 D.1000000 33.NickGibbthinksthattheMandarinExcellenceProgrammay. ①helpBritishstudentsfindbetterjobsinthefuture ②helptheUnitedKingdomremaincompetitiveintheworld ③givemoreBritishstudentsachancetolearnMandarinChinese ④helptheUnitedKingdomimproveitsrelationshipwithChina A.①②③ B.①②④ C.①③④ D.②③④ 34.WhichofthefollowingsentencesisTRUE? A.Over5000AmericanstudentsarestudyingMandarinChinese. B.FourteenschoolsfromBritainhavetakenpartintheprogram. C.BritishstudentswillsoonstoplearningMandarinChineseafter2020. D.MandarinChinesehasbeenthemostwidely﹣writtenlanguageintheworld. 35.Whatisthemainideaofthearticle? A.PeopleintheworldarelearningMandarinChinese. B.MandarinChineseisoneofthemostdifficultlanguagestolearn. C.TheUKhasstartedaprogramtohelpitsyoungpeoplelearnMandarinChinese. D.MandarinChinesewillsoonbethemostwidely﹣usedlanguageinsteadofEnglish.
2分 26.Thethreeshortpassagesabovearemostprobably. A.letters B.postcards C.invitations D.advertisements 27.Whichnumberwouldyoucallifyouwanttolivenearthecitycenter? A.59758339 B.59759876 C.59226600 D.59787633
1分﹣Ican'tbelieveJacktalkedtohisgrandfatherlikethatjustnow.boyheis! ﹣Iagree.Heisnotsupposedtodothat. A.Howpolite B.Howimpolite C.Whatapolite D.Whatanimpolite
1分HumansareveryinterestedinMarshoweverwestilldon'tknowwhetherthereislifeonthis行星.
1分Somestudentsusually睡觉lateonSundays.
1分BettywillkeeponlearningFrenchshehasenoughtimeforit. A.but B.though C.unless D.if
5分 A:DoyouknowChinaChildrenandTeenagers'Fund? B:Er…I'mafraidnot.IsitacharityorganizationinChina? A:Yesyou'reright.Likeitsnameitspurposeisto51childrenandteenagerswiththeireducation. B:Whenwasit52? A:In1981.Ithascarriedoutdifferentprojects53China.DoyouknowtheSpringBudProject? B:OhIknowthat.Itmainlyhelpsgirlsin54areas.Sofarithashelpedover900000girlsgobacktoschool. A:Wowthat'squitealot.Ialsowanttodevote55tocharityworkinthefuture. B:Metoo.Thatwouldbeverymeaningful. 51. 52. 53. 54. 55.
1分﹣CanweleaveMikealoneathomeforawhile? ﹣Ofcourse.Heistwelveyearsoldnowandhecantakecareofwell. A.himself B.herself C.myself D.yourself
1分﹣DadmayIgoouttoplaybasketballwithJames? ﹣Ifyoucomebackbeforelunch. A.must B.may C.might D.should
1分﹣Isittruethatin2020highschoolstudentscantakeEnglishtestsmorethanonce? ﹣It'sreportedthatonlythehighestscore. A.willtake B.hastaken C.willbetaken D.wastaken
1分﹣HiAndy！WhereisJim? ﹣IsawhimleafletstoaskmorestudentstotakepartintheactivityTheVoiceofJianye. A.breakingout B.handingout C.puttingout D.workingout
1分Nanjingisbuildingthe第五bridgeacrosstheChangjiangRivernow.
15分假如你是南京市阳光中学九年级的李明来自加拿大的交换生Jenny将来你校学习她发邮件向你咨询初中的学习与生活情况.请根据Jenny邮件的内容用英语给她回一封邮件. 注意: 1.文中不得出现你的真实姓名和学校名称; 2.语言通顺意思连贯条理清楚书写规范; 3.词数80左右邮件的开头和结尾已经给出不计入总词数. DearJenny Thanksforyourletter.I'mgladthatyou'llcometostudyinmyschool. Yours LiMing
1分Whentheearthquakemostofthevillagerswereworkinginthefields. A.happens B.happened C.willhappen D.wouldhappen
5分SCENEI FatherandMotherareathome.Gwenjustgetshome. Gwen:I'mhomeMomDad. Mom:How'syourdayGwen? Gwen:Notbad.I'mtiredoftakingbusestoschooleveryday. Father:Why? Gwen:Thebusissocrowdedeverymorning. Mom:Idon'tunderstand.What'syourpoint? Gwen:Iwanttobuyamotorcycle﹣aHarley. Father:What!!Harley!Areyoucrazy? Mom:tofatherCalmdown.toGwenIunderstandyoursituation.IwouldagreeifyouwanttobuyanormalmotorcyclebutHarley!Forgetit. Gwen:ButIwantitsomuch.I'vealwayswantedone. Father:OK.Icancontributesomeforthemotorcyclebutyouhavetopaytherest yourself. Mom:Iagreewithyourdad. Gwen:Oh!Yes!Areyousure?ButIdon'thaveanymoneytopayforit! Father:YoucanuseyourNewYears'pocketmoneyorfindapart﹣timejob. Gwen:Heyitsoundslikeagreatideatogetapart﹣timejob. Mom:Youhavetokeepyoureyesopenwhenyoulookforapart﹣timejob. Gwen:Don'tworry.I'llbecareful. Father:Icangiveyousomeadviceandexperience.WhenIwasateenagerIoncefoundajobtocarryheavythings.ItwasveryhardbutIlearnedhowtoworkwithothersandhowtousetime.Sowillyou.changeoftoneIrememberInearlylostmylifeoneday. Gwen:ThanksDad.IthinkIcanhandleit.I'llbecareful. 31.WhydoesGwenwanttobuyamotorcycle? A.Becausethebusistoocrowded. B.Becausehecanrideittotheworkplace. C.Becausehehasenoughmoneytobuyit. D.Becauseittakestoomuchtimetotakeabus. 32.HowdoesGwen'sFatherfeelwhenhehearsthatGwenwantstobuyamotorcycle? A.excited B.surprised C.nervous D.happy 33.WhatdoestheunderlinedwordItreferto? A.advice B.teenager C.job D.time 34.WhydoesGwen'sfathersharetheworkingexperiencewithhim?A.Hewantstoshowoff.B.Helikestocarryheavythings.C.Hedoesn'twantGwentobuythemotorcycle.D.TheexperiencemayhelpGwenfindasuitablepart﹣timejob.35.HowwillGwenbuythemotorcycle? A.Hisfatherwillpayforit. B.HewilluseNewYears'pocketmoney. C.HisfatherwillpaysomeandGwenwillpayfortherest. D.He'lldoapart﹣timejobandearnmoneytobuyitbyhimself.
1分MybrotherandIwenttoseemyauntinHangzhouonMayDay.Shegaveussomedeliciousfoodasa招待.
1分Canadawantstochoosethecountry'snationbirdonits150thbirthdayin2017.
1分Whichofthefollowingwordsmatchesthesound/'peərənt/? A.present B.parent C.period D.prepare
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库
高一上学期物理
湘公网安备 43130202000226号