18B.45C.63D.81的知识精选
问题详情:在等差数列{an}中,a3+a4+a5+a6+a7=45,则S9=()A.18B.45C.63D.81【回答】解答:解:∵等差数列{an}中,a3+a4+a5+a6+a7=5a5=45,∴a5=9;∴S9===9a5=81.故选D.知识点:数列题型:选择题...
WASP-18bisroughly10timesthemassofJupiter,anditorbitsonlyabout3millionkilometersfromitsstar.WASP-18b,whichwasdiscoveredwithtwintelescopeslocatedintheCanaryIslandsandSouthAfrica,islocatedabout400light-y...
问题详情:81.Theyfoundtheremainsofbuildingburiedb____________(在…下面)thesand.82.Iamsuggestingtoyouthatthereisa______________(区别))betweentruthandso-calledreality.83.Thenewly-builtrailwaywillbe_______...
问题详情:81.Theteamp___________whentheyrealizedtheywerelostandindanger.82.Christmasisaroundthecorner.It’stimetoputsomed______ ontheChristmas trees.83.Thebookistoodifficult!I’mafraidIwon’tbeabletor...
问题详情:81.Farmworkersspendmostoftheirtime_____________.(在户外)82.Weusuallygooutforawalkat__________.(黄昏)83.Idideverythinginmy____________(能力;力量)tohelpyou.84.BillandIoften____________(不同意;有分...
问题详情:81.Hebrokedownthe_________(壁垒)thathadexistedbetweenracesandstylesofmusic.82.Their_________(complain)seemsillynow,butbackthenrockandrollwasallthemorepopularwiththeyouthbecauseparentsandgrandp...
问题详情:16x2=81; 【回答】x=±; (知识点:平方根题型:计算题...
问题详情:3x3=-81【回答】知识点:平方根题型:计算题...
问题详情:____ ____ (把手伸进)hispockettogethisphone.finishedtheworkonhisown____ ____ (因为)nobodyhelpedhim.83.____ ____ ____ (不是每一种)of birdcanfly.Saxons'svictoryabout600yearsearlier...
问题详情:(﹣81)÷2+÷(﹣16);【回答】原式=﹣81×﹣×=﹣36;知识点:有理数的乘除法题型:计算题...
问题详情:81.Iknow______________(肯定地)howIcansolvetheproblem.82.Godhelpsthosewho_____________(依靠)themselves.83.Allthemoneyhehadhadbeen_________________(用完),sohehadtomakealivingby begging.84.Wes...
问题详情:81.It’sthefirsttimethatIhadseenthemoviestarfacetoface.82.EnglishisoneoftheofficiallanguageusedinIndia.83.Althoughhetriestotalktomyclassmates,butIstillfindithardtomakefriendswithhim.84.Believi...
问题详情:81.Thosewhob___________theircountrieswerehatedbyallthepeople.82.Theirteamiss___________,andit’shardforustobeat them.83.Alicemusthavedonesomethingwrong,becauseshe’slookingsog__________84.Boy...
问题详情:10Iliveinasmalltowninthesouth.Thisistypical 81.________________Chinesetown.Therearenotonlytwomainstreets 82.________________whichacrossinthemiddleofthetown.Aroundthe...
问题详情:(﹣81)÷2×(﹣)÷(﹣16).【回答】解:(﹣81)÷2×(﹣)÷(﹣16)=﹣81×××=﹣1.知识点:有理数的乘除法题型:计算题...
问题详情: 81.Thefarmersinthisareahadagoodharvestlastyearthankstothes_____________farming. 82.Hewasa____________________inthebook. 83.Hefinishedhisworkinap__________________(积极的)wa...
问题详情:makesasensetoworkontheproblembeforeitgetsoutofcontrol.rbinginthebookshewasreading,sheforgotlunch.teachercuredhimhisbadhabitsandhemadegreatprogressinEnglish.[Z-X-X-K]hertheteachernorthestudents...
问题详情:81.Itisc_______________ofmybosstoallowmetohaveadayoffonMother’sDay.82.Youcan’texpectthatalltheproblemscanbe____________(解决)inaveryshorttime.83.Ana________________mustbemadebeforeyouseeyour...
问题详情:81.Thesungivesofflightandwarmth,thatmakesitpossibleforplantstogrow.82.Whenandwherewillthenextmeetingheld?83.Notonlytheteacherbutalsothestudentshastheireyesexaminedregularly.84.Theyoungmanishig...
问题详情:4x2=81; 【回答】解:∵x2=,∴x=±=±;知识点:平方根题型:计算题...
问题详情:81. Inagesturetohelppreservehistory,theGreekgovernmenta ▲ ...
问题详情:81. WhenIwaslittle,Friday’snightwasourfamilygamenight.Aftersupper,wewouldplaycardgamesofallsortinthesittingroom.Asthekid,Ilovedtowatchcartoons,butnomatterhowmanytimesIaskedtowatchingthem,...
问题详情:________________________________________,someanimalsarefacingthedangerofdyingout.(cut) 由于越来越多的森林被砍伐,一些动物正面临着灭绝的危险。larly____________________________________________Am...
问题详情:81.Canyout____________(忍受)suchalongperiodofworktime?82.Inordertomake____________(准备)forthecomingcompetition,hedevoteshissparetimetoreadingeveryday. aref____________tousemobilephonesinschoo...
问题详情:Iwenttoseethefilmaftersupper.Onmywaytothe 81._______________cinema.ImetanEnglishwoman,wholostherway. 82._______________Igaveupthechanceseethefilmandtookhertoher ...
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