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解下列方程1-x=
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按要求解下列方程x2+x-3=0公式法
解下列方程0.4x2-0.8x=1
用配方法解下列方程:1x2+5x-1=0
用适当的方法解下列方程3x-12=x+12
解下列方程x2-4x-12=0
解下列方程:3x2+x-2=0;
用配方法解下列方程2x2-4x-1=0
解下列方程:4x-32=25;
解下列方程3x+2x+3=x+14
解下列方程2x2﹣4x﹣1=0.
不解下列方程判断下列哪个数是方程的解
) x=1
x=-1
x =3
x=-3
解下列方程:x2+6x-10=0配方法.
用配方法解下列方程0.1x2+0.2x-1=0
用配方法解下列方程1x2+4x+1=0
用配方法解下列方程x2+5x-1=0
用配方法解下列方程2x2+1=3x
用配方法解下列方程4x2-4x-1=0
解下列方程1-3x2+22x-24=0
用适当的方法解下列方程3x-12=x+12
用配方法解下列方程2x2+1=3x.
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8分Manysmall﹣businessownerswatchedrecentrevelationsaboutFacebookwithmixedemotions.LikemostAmericanstheyweresurprisedtodiscoverhowmuchinformationthesocialmediagiantcollectedonitsusers.ButwhenitcomestosmallbusinessFacebookisatransformativeadvertisingplatformforsmallbusinessesnoteasytoreplace. Let'ssayyouownasmallseafoodrestaurantandTuesdaynightsare﹩1oyster牡蛎nights.Traditionaladvertisingmethodscostalotandmustbeplannedlonginadvanceandit'shit﹣or﹣missastowhetheryouactuallygetinfrontofoystereaters.WithFacebookonTuesdaymorningwithafewclicksyoucantargetFacebookusersinyourZipcodewholoveoystersandeatingoutandareoverage21sotheycanbuydrinkswhichiswhyyouhave﹩1oysternights.Andyoucandothisforaslittleas﹩20. Inmyworkwithsmallbusinessesformorethan25yearsI'veneverseenamoreeffectivemethodofmicro﹣targetingprospects.ThoughFacebookisaneffectivetoolforsmall﹣businessadvertisingdoesnotjustify证明合理thecompany'scollectingvastamountsofdataorallowingusers'datatobeinvaded. Ourprimaryconcernwaspeople'sexperienceonFacebooksaidDanLevyFacebook'sVicePresidentSmallBusiness.Ourteamshavealsobeenspeakingtosmallbusinessesandtheywanttomakesurewe'readdressingthesituationandweare. OneconcernsmallbusinesseswantFacebooktoaddressisprotectingtheiruploadedlists.Noonewantstheircustomers'informationmisusedoraccessedbyothersespeciallycompetitors. Small﹣businessownersarerightfullyconcernedaboutprivacy.Theydon'twantFacebooktoknoweverythingaboutthemandtheydon'twanttheircustomerlisttobeletouttoothers. Butsmallbusinessesdon'twanttolosethiseffectiveadvertisingmediumeither.MostFacebookadsarenotinvasiveoroffensive.Andmanyreceiversmayactuallybenefitfromreceivinghighlytargetedads﹣afterallthoseoysterloverslikelearningaboutTuesdaynight﹩1oysternight. 1HowdoestheauthorexplainFacebook'sfunctioninparagraph2? A.Byperforminganexperiment. B.Byleadingasurvey. C.Byanalyzingthedata. D.Bygivinganexample. 2Whatistheauthor'sattitudetowardsFacebookmentionedinparagraph3? A.Objective. B.Supportive. C.Doubtful. D.Respectful. 3WhatmakessmallbusinessesconcernedaboutFacebookaccordingtothetext? A.WhatpeopleexperienceonFacebook. B.ThatFacebookupdatesthelistsconstantly. C.ThattheircompetitorsbenefitmorefromFacebook. D.ThatFacebookwillgiveawaytheircustomerlist. 4Whatcanbethebesttitleofthetext? A.Facebookisbenefitingsmallbusiness B.Facebookamixedbagforsmallbusiness C.Facebookisprotectingcustomers'privacy D.Facebookapowerfuladvertisementtool
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MynameisHodan.I'mSomalia索马里人.IhavehadadreamsinceIwasateenager.1SoIcametoHangzhouChinaintheautumnof2011.2Injust2termsIfinished3yearsofChineselanguagecourses.InSeptember2012IbegantostudyinZhejiangNormalUniversity.3EverydayafterclassIwouldgotothelibrarytostudyChinese.ThroughthehardworkIfinished4yearsofstudiesinjust3years.ThenIbeganthe2yearsofaMaster硕士atZhejiangUniversity.Iamcertainlynotabookworm书虫4InAugust2013Itookpartinthe3rdtimeofChineseBridgeheldbyCCTVandwonthe2ndprize.5In2015Iwasalsoinawritingcontestandmyarticlewonthefirstprize.用方框内的适当选项补全短文. 1. 2. 3. 4. 5.
小强老师为了今年的升中考试他先用120元买了若干本数学复习资料后来又用240元买同样的数学复习资料这次比上次多20本而且店家给予优惠每本降价4元.请问第一次他买了多少本复习资料
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如图弦BC经过圆心DAD⊥BCAC交⊙D于EAD交⊙D于MBE交AD于N.求证△BND∽△ABD.
whatis
Thisis我的desk.
DoyouhaveanEnglishn?
Nicetomeetyou..A.Hi B. Hello C.Nicetomeetyoutoo D.Goodmorning
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如图已知AB是⊙O的直径C是⊙O上的点连接ACCB过O作EO∥CB并延长EO到F使EO=FO连接AF并延长AF与CB的延长线交于D.求证AE2=FG•FD.
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我们知道只有两边和一角对应相等的两个三角形不一定全等.你如何处理和安排这三个条件使这两个三角形全等.请你仿照方案1写出方案23. 解设有两边和一角对应相等的两个三角形. 方案1若这角恰好是直角则这两个三角形全等. 方案2. 方案3.
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Thisiseraser.Youshouldlookafterit. A.your B.you C.a D.yours
IEnglish.
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她的名字叫什么? is?
见到你很高兴. you.
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