關於A.81的知識

問題詳情：等比數列中，，，則的前4項和為（   ）A．81              B．120             C．168             D．192【回答】B【解析】由得．∴，．故選B．知識點：數列...

問題詳情：81．   WhenIwaslittle,Friday’snightwasourfamilygamenight.Aftersupper,wewouldplaycardgamesofallsortinthesittingroom.Asthekid,Ilovedtowatchcartoons,butnomatterhow...

問題詳情：81.Iknow______________(肯定地)howIcansolvetheproblem.82.Godhelpsthosewho_____________(依靠)themselves.83.Allthemoneyhehadhadbeen_________________(用完),sohehadtom...

問題詳情：81.Itisc_______________ofmybosstoallowmetohaveadayoffonMother’sDay.82.Youcan’texpectthatalltheproblemscanbe____________(解決)inaveryshorttime.83.Ana____________...

問題詳情：81.It’sthefirsttimethatIhadseenthemoviestarfacetoface.82.EnglishisoneoftheofficiallanguageusedinIndia.83.Althoughhetriestotalktomyclassmates,butIstillfindithardt...

問題詳情：4x2=81；                      【回答】解：∵x2=，∴x=±=±；知識點：平方根題型：計算題...

問題詳情：   81.Thefarmersinthisareahadagoodharvestlastyearthankstothes_____________farming.    82.Hewasa____________________inthebook.     83.Hefinishedhiswork...

問題詳情：81.                                                                Inagesturetohelppreservehistory...

問題詳情：____  ____ (把手伸進）hispockettogethisphone.finishedtheworkonhisown____  ____ (因為）nobodyhelpedhim.83.____  ____  ____ (不是每一種）of birdcanfly.Saxons...

問題詳情：16x2＝81；              【回答】x＝±；  （知識點：平方根題型：計算題...

問題詳情：________________________________________,someanimalsarefacingthedangerofdyingout.(cut) 由於越來越多的森林被砍伐,一些動物正面臨着滅絕的危險。larly________________...

問題詳情：81.Farmworkersspendmostoftheirtime_____________.(在户外)82.Weusuallygooutforawalkat__________.(黃昏)83.Idideverythinginmy____________(能力；力量)tohelpyou.84.Billan...

問題詳情：（﹣81）÷2+÷（﹣16）；【回答】原式=﹣81×﹣×=﹣36；知識點：有理數的乘除法題型：計算題...

問題詳情：81.Hebrokedownthe_________(壁壘)thathadexistedbetweenracesandstylesofmusic.82.Their_________(complain)seemsillynow,butbackthenrockandrollwasallthemorepopularwitht...

問題詳情：81.Theteamp___________whentheyrealizedtheywerelostandindanger.82.Christmasisaroundthecorner.It’stimetoputsomed______ ontheChristmas trees.83.Thebookistoodiffic...

問題詳情：81.Theyfoundtheremainsofbuildingburiedb____________(在…下面)thesand.82.Iamsuggestingtoyouthatthereisa______________(區別))betweentruthandso-calledreality.83.Then...

問題詳情：算術平方根為9的數是(   )．A．3        B．±3      C．81    D．±81【回答】C   知識點：平方根題型：選擇題...

問題詳情：3x3=-81【回答】知識點：平方根題型：計算題...

問題詳情：10Iliveinasmalltowninthesouth.Thisistypical    81.________________Chinesetown.Therearenotonlytwomainstreets          82.________________whichacrossi...

問題詳情：81.Thosewhob___________theircountrieswerehatedbyallthepeople.82.Theirteamiss___________,andit’shardforustobeat them.83.Alicemusthavedonesomethingwrong,becausesh...

問題詳情：makesasensetoworkontheproblembeforeitgetsoutofcontrol.rbinginthebookshewasreading,sheforgotlunch.teachercuredhimhisbadhabitsandhemadegreatprogressinEnglish.[Z-X-X...

問題詳情：9的平方根是（ ）A、3   B、±3   C、81    D、±81【回答】B知識點：平方根題型：選擇題...

問題詳情：81.Canyout____________（忍受）suchalongperiodofworktime?82．Inordertomake____________(準備)forthecomingcompetition,hedevoteshissparetimetoreadingeveryday.  aref______...

問題詳情：81.Thesungivesofflightandwarmth,thatmakesitpossibleforplantstogrow.82.Whenandwherewillthenextmeetingheld?83.Notonlytheteacherbutalsothestudentshastheireyesexamine...

問題詳情：（﹣81）÷2×（﹣）÷（﹣16）.【回答】解：（﹣81）÷2×（﹣）÷（﹣16）=﹣81×××=﹣1．知識點：有理數的乘除法題型：計算題...