- Becausethereplacementtextfor-isacharacterreference,it'sexactlythesameastypinganendashcharacter.Mostfontsareequippedwithatleasttwodashes:anendash(-,-,whichisthewidthofalowercase"n")andanemdash(-,-,whichisthewidthofalowercase"m").Theendashisalsous...
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- Damageenrouteisveryrare.Arrangefortransshipmentenrouteifnecessary.Westoppedforapicnicenroute.Shuttleshavebreakdownsortrafficaccidentsenroute.Thepatientarrestedenroutetothehospital.WestoppedatParisenroutefromRometoLondon.Somecrashedsintostheplanet,oth...
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- 1、Theenrule:Theenruleworksexactlyliketheaxrule,butwithaNW(non-word)productionanticipatedtofollow.2、infalliblelaw;goldenrule3、Eminentmenrulethestate4、Thegoldenruleseemstoworkhere.5、Heboretheunwrittenruleinmind.6、oddevenruleofnuclearstability7、...
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- 问题详情: 完形填空Lookatthegirl.Sheis 1 goodfriend.Sheis 2 Englishgirl. 3 nameisBetty. 4 twelve.My 5 LiMei. 6 aChinesegirl.I’mfourteen.Betty 7 asportscollection(收集):five 8 ,threebasketballs,andf...
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- 问题详情:*原子第n能级的能量为En=,其中E1为基态能量.当*原子由第4能级跃迁到第2能级时,发出光子的频率为ν1;若*原子由第2能级跃迁到基态,发出光子的频率为ν2,则=. 【回答】解析:由于hν=Em-En,而En=,由此得===.*:知识点:*原子光谱和玻尔的原子模型题型:填空题...
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- Thespeakerwasenrapportwithhisaudience.Proactivelyengagestheclientincommunicationsinitiativesandmaintainsanopenrapportwiththetopdecisionmakers....
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- 问题详情:如图,已知点D为△ABC的边BC上一点,,En(n∈N+)为边AC上的一列点,满足,其中实数列{an}中an>0,a1=1,则{an}的通项公式为()A.2•3n﹣1﹣1 B.2n﹣1 C.3n﹣2 D.3•2n﹣1﹣2【回答】A知识点:平面向量题型:选择题...
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- Theselectorsshouldresignenbloc.Theyleftthemeetingenbloc.TotalenblocspondylectomyfortumorofthethoracolumbarspineTherearereportsofteachersresigningenbloc.SpondylectonmyenblocforthoracicandlumbartumorsviaposteriorapproachObjective.Toevaluatethefunctiona...
- 11999
- Grupoasesorenintegracioneconomicacentroamericana"Vaenenfer.""D'm'yaccompagnes"But,hey,isn'tsemanticsenvogue?David,ahoraenMelbourne,esperaestardevueltaenShanghaiaprincipiosde2011.TheDayanPagodaisalsocalledDaci'enPagoda.Ialwaysenjoywinterevenin...
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- 问题详情:电场中M、N两点场强的大小分别为EM、EN,电势分别为φM、φN。某带电粒子仅在电场力作用下从M点运动到N点,若此过程中带电粒子的动能始终保持不变,下列判断正确的是A.EM>EN,φM>φN B.EM<EN,φM=φNC.EM=EN,φM=φN ...
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- 问题详情:用单*光照*一群原来处于基态的*原子,若经照*后*原子共能发*出N种不同频率的光子,用En表示*原子处于量子数为n的能级时的能量,h为普朗克常量,则根据N的数值可判断入*光的频率ν为A.若N=1,则ν= B.若N=3,则ν=C.若N=6,则ν= ...
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- 问题详情:右图中实线表示某电场中的电场线,M、N为电场中的两点,关于M、N两点的电场强度EM、EN的大小关系,下列判断正确的是 A.EM>EN B.EM<EN C.EM=EN D.无法判断 【回答】A知识点:电场电场强度题型:选择...
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- 问题详情:已知一价氦离子He+能级En与量子数n的关系为En=,处于基态的一价氦离子He+的电离能为54.4eV,为使处于基态的一价氦离子He+变为激发态,入*光子的最小能量为()A.13.6eV B.40.8eVC.48.4eV D.54.4eV【回答】B解析由hν=E1-,当n=2时,所需入*光子的能量最小,而E1=54.4eV,代入数值可得hν=40...
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- 1、Thepeoplemarchedenmasse.2、Andit'snotjustbirdsthatcandieenmasse.3、Theridersinpointsracestartenmasse.4、TheoriginalScientificAdvisoryCommitteeresignedenmasse.5、Thepeaceactivistsmarchedenmassetothecapitol.6、Butifbotheventsoccurtogether,itwillver...
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- 问题详情:已知*原子的基态能量为E,激发态能量En=,其中n=2,3….用h表示普朗克常量,c表示真空中的光速.能使*原子从第一激发态电离的光子的最*长为( ) A. B. C. D.【回答】考点:*原子的能级公式和跃迁.专题:计算题.分析:最*长对应着光子的最...
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- Heisthoroughlydomesticatedandcooksadeliciouschickencasserole.chickencasserolepreparedwithtomatoesandmushroomsandherbsintheItalianstyle.Iheadedoutside,pleasedwithmypurchaseandwithvisionsoffriedchicken,chickentacos,chickenandrice,stir-frychicken,andchi...
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- Theballerinarosegracefullyenpointeandextendedoneslenderlegbehindher,likeadogatalamppost.OnAugust2,hundredsofballetdancersgatheredintheCentralParkinNewYorkandstoodenpointeforoneminuteandsevenseconds....
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- 1、EnTaroAdun.2、Zealot:EnTaroAdun!Thereisnotimetowaste.Wemustjoinourbrethreninbattle....
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- 问题详情:如图所示,在△ABC中,DM、EN分别垂直平分AB和AC,交BC于D、E,若∠DAE=50°,则∠BAC=度,若△ADE的周长为19cm,则BC=cm.【回答】11519cm.【解答】解:①∵DM、EN分别垂直平分AB和AC,∴AD=BD,AE=EC,∴∠B=∠BAD,∠C=∠EAC(等边对等角),∵∠BAC=∠DAE+∠BAD+∠CAE,∴∠BAC=∠DAE+∠B+∠C;又...
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- 问题详情:*原子第n能级的能量为En=,其中E1是基态能量.若某*原子发*能量为-E1的光子后处于比基态能量高-E1的激发态,则该*原子发*光子前处于第________能级;发*光子后处于第________能级.【回答】4 2 【解析】由题意可得发*光子后*原子能量为;根据波尔理论*原子发*光子能...
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- 问题详情:如图,在正方形ABCD中,点E,F分别在边BC,DC上,AE、AF分别交BD于点M,N,连接CN、EN,且CN=EN.下列结论:①AN=EN,AN⊥EN;②BE+DF=EF;③∠DFE=2∠AMN;④EF2=2BM2+2DN2;⑤图中只有4对相似三角形.其中正确结论的个数是()A.5 B.4 C.3 D.2【回答】B解:将△ABE绕点A逆时针旋转90°得...
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- 问题详情:En,thisdishtastes__________A.well Bgood C.badly Dnicely【回答】B知识点:相似相近词比较题型:选择题...
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- 问题详情:如图,三角形ABC中,AB=AC,D,E分别为边AB,AC上的点,DM平分∠BDE,EN平分∠DEC,若∠DMN=110°,则∠DEA=()A.40° B.50° C.60° D.70°【回答】A【分析】根据等腰三角形的*质得到∠B=∠C,由角平分线的定义得到∠BDN=∠MDE,∠DEN=∠CEN,根据外角的*质得到∠B=∠DMN﹣∠BDM=∠DM...
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- 问题详情: WelcometoArundelCastlewhichissituatedinWestSussex,England.Thecastlehasahistoryofnearly1000yearsandhaswelcomedvisitorstravelingfromallovertheworld.ArundelCastlealsoplaysastarringroleinmanyfilms.TheGardens TheWhiteGardenisplantedwith...
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- 问题详情:如图,在▱ABCD中,点E在对角线BD上,EM∥AD,交AB于点M,EN∥AB,交AD于点N,则下列式子一定正确的是()A.= B.= C.= D.=【回答】D.知识点:各地中考题型:选择题...
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