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發表於:2021-07-29
問題詳情:1.Quote…Unquote“Tostudyandnotthinkisawaste.Tothinkandnotstudyisdangerous.” ----Confucius,Chineseeducatorandthinker___________________________________________...
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發表於:2018-04-26
Sincereprintrateindicatesthefameandthenumberofreadersofthescientificpapersprintedintheperiodicalsandquoterateindicatestheacademicinfluenceofthem.InsuranceBrokerswillquote...
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發表於:2021-08-15
問題詳情:若(x-1)0=1則 ( ) A.x≥1 B.x≤1 C.x≠1 D.x≠0【回答】C知識點:分式的運算題型:選擇題...
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發表於:2020-01-18
問題詳情:計算:(1﹣)×(1﹣)×(1﹣)×(1﹣)×…×(1﹣)×(1﹣)【回答】解:原式=××××…××=.知識點:有理數的乘除法題型:解答題...
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發表於:2019-04-15
問題詳情:觀察下列各式(x-1)(x+1)=x2-1(x-1)(x2+x+1)=x3-1(x-1)(x3+x2+x+1)=x4-1…①根據以上規律,則(x-1)(x6+x5+x4+x3+x2+x+1)=______.②你能否由此歸納出一般*規律:(x-1)(xn+xn-1+…+x+1)=______.③根據②求...
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發表於:2020-10-01
問題詳情:計算: +()﹣1﹣(+1)(﹣1)【回答】【考點】二次根式的混合運算;負整數指數冪.【專題】計算題.【分析】原式第一項化為最簡二次根式,第二項利用負指數公式化簡,第三項利用平方差公式化簡,合併後即...
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發表於:2018-11-16
ExceptasauthorizedbytheCompany,theDistributorshallnotquotepricetoanycustomersoutsidetheterritory.Wewanttobuyamanganeseoxidewith62%PLSsendusyourspecandyourquotepriceFOB.Wh...
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發表於:2019-08-24
問題詳情:根據(x﹣1)(x+1)=x2﹣1,(x﹣1)(x2+x+1)=x3﹣1,(x﹣1)(x3+x2+x+1)=x4﹣1,…的規律,則可以得出22017+22016+22015+…+23+22+2+1的結果可以表示為 .【回答】22018﹣1.【解答】解:22017+22016+22015+…+23+22+2+1...
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發表於:2019-01-17
Iprefer"career,"withscarequotes,althoughonemightalsocallitapart-timejobwithopportunitiesforadvancement.Containsawordorphraseforwhichtheauthorornarratorindicatesadisclai...
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發表於:2017-09-05
AsalesmanfromMotorolaorDelcomightstopby,withaquoteonresistors.WeregretbeingunabletoquoteonFOBbasis,asitisourgeneralpracticetodobusinesswithallourclientsonCIFterms....
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發表於:2020-04-01
問題詳情:.計算(﹣1)1+(﹣1)2+…+(﹣1)2000=. ...
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發表於:2020-11-23
問題詳情:計算:(1-)(1-)(1-)……(1-)(1-).【回答】原式=(1-)(1+)(1-)(1+)(1-)(1+)……(1-)(1+)(1-)(1+)=×××……××=×=.知識點:乘法公式題型:計算題...
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發表於:2023-12-27
1、Tocreateanactualapostrophe,puttwosinglequotemarksside-by-side(")toproduceonequotemarkinyouroutput."2、Sometimesallittakesisafresh,restedpairofeyestospotamissingsemi-...
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發表於:2019-08-12
問題詳情:.閲讀材料,回答問題.(1+)×(1-)=×=1;(1+)×(1+)×(1-)×(1-)=×××=(×)×(×)=1×1=1.根據以上信息,計算:(1+)×(1+)×(1+)×…×(1+)×(1-)×(1-)×(1-)×…×(1-).【回答】解:(1+)×(1+)×(1+)×…×(1+)...
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發表於:2019-11-05
問題詳情:先觀察:1﹣=×,1﹣=×,1﹣=×,…(1)探究規律填空:1﹣=×;(2)計算:(1﹣)•(1﹣)•(1﹣)…(1﹣)【回答】【考點】有理數的混合運算.【分析】(1)利用平方差公式變形即可得到結果;(2)原式利用平方差公式化簡,計算即可得到結果...
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發表於:2019-07-13
問題詳情:如圖表示果蠅(2N=8)體內細胞在*過程中某比值H(H=染*體數/核DNA含量)QUOTE的變化曲線,F時細胞*剛好結束.下列相關敍述中錯誤的是()A.EF段細胞內可能有8對同源染*體B.基因的分離和自由組合...
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發表於:2020-03-22
問題詳情:(﹣1)+(+1)+(﹣2)﹣(﹣3)﹣(+1).【回答】原式=﹣1﹣2+1+3﹣1=﹣.知識點:有理數的加減法題型:計算題...
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發表於:2020-09-06
問題詳情: (x-1)-(1-x)+(x+1)=3x-1.()【回答】∨知識點:整式的加減題型:填空題...
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發表於:2018-01-23
Tocreateanactualapostrophe,puttwosinglequotemarksside-by-side(")toproduceonequotemarkinyouroutput."Inordertoenterasinglequoteintoatextliteralsurroundedbysinglequotes,or...
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發表於:2019-05-07
問題詳情: (+1)(-1)-+()-1;【回答】解:原式=3-1-4+2=0.知識點:二次根式的乘除題型:計算題...
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發表於:2021-12-13
Wehaveaskforquoteforrefitthebar.Wehaveaskedforquoteforrefittingthebar.Theirquoteforthejobwaswaytoohigh.Howmuchdoyouquoteforthisbrandoftie?Forexample,apricequotefor10,000T...
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發表於:2018-01-29
ToquotefromclassicscanonsThisisaquotefromtheBible.Letmequotefromoneofyourdocuments.Ineedaquotefromeachofyouforthenewspaperarticle.There'sawonderfulquotefromJohnWatsonand...
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發表於:2019-02-28
問題詳情:觀察下列各式:(x﹣1)÷(x﹣1)=1(x2﹣1)÷(x﹣1)=x+1;(x3﹣1)÷(x﹣1)=x2+x+1(x4﹣1)÷(x﹣1)=x3+x2+x+1(1)根據上面各式的規律可得(xn+1﹣1)÷(x﹣1)= ;(2)求22019+22018+22017+……+2+1的值.【回答】解:(1)根據上面各式的規律,可得:(xn...
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發表於:2020-09-06
問題詳情:(22+1)(24+1)(28+1)(216+1)+1=.【回答】232.【考點】平方差公式.【專題】計算題.【分析】原式乘以(2﹣1)後,利用平方差公式依次計算,合併即可得到結果.【解答】解:原式=(2﹣1)(2+1)(22+1)(24+1)(28+1)(216+1)+1=(2...
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發表於:2018-12-06
Letmejustquotehim.Youmayquotemeonthat.That'sokay.Givethemaquote.TheyquoteTheDailyStar,whoquoteanunnamedScandinaviansourceapparentlyclosetoEriksen.Concludewithaquoteorcal...