![若兩個三角形的相似比爲1:2，則它們的面積比爲（ ）A．1:2B．1:4C．2:1D．4:1]( "若兩個三角形的相似比爲1:2，則它們的面積比爲（ ）A．1:2B．1:4C．2:1D．4:1")
- 問題詳情： 若兩個三角形的相似比爲1:2，則它們的面積比爲（ ）A．1:2B．1:4C．2:1D．4:1【回答】B知識點：相似三角形題型：選擇題...
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![已知*A＝{x|x2＋ax＋12b＝0}和B＝{x|x2－ax＋b＝0}，滿足(∁RA)∩B＝{2}，A∩(...]( "已知*A＝{x|x2＋ax＋12b＝0}和B＝{x|x2－ax＋b＝0}，滿足(∁RA)∩B＝{2}，A∩(...")
- 問題詳情：已知*A＝{x|x2＋ax＋12b＝0}和B＝{x|x2－ax＋b＝0}，滿足(∁RA)∩B＝{2}，A∩(∁RB)＝{4}，求實數a，b的值．【回答】解：由條件(∁RA)∩B＝{2}和A∩(∁RB)＝{4}，知2∈B，但2∉A；4∈A，但4∉B.將x＝2和x＝4分別代入B，A兩*中的方程得即解得a＝，b＝－即爲所求．知識點：*與函數的概念題型：解答題...
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![41.Stayingupforplayingcomputergamesis]( "41.Stayingupforplayingcomputergamesis")
- 問題詳情：41.Stayingupforplayingcomputergamesis_________(harm)tochildren’health. 42.TheUSisChina’sbiggestexportmarket,___________(account)formorethan70percent ofChina’exports. ...
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![I’vedreamedofbecomingawritersinceIwasateenager.But 41 ...]( "I’vedreamedofbecomingawritersinceIwasateenager.But 41 ...")
- 問題詳情：I’vedreamedofbecomingawritersinceIwasateenager.But 41 isn’teasytogetabookofminepublished. 42 I’vetriedhard,noneofmybookshavebeenpublished.Thisisreally 43 (upset).Thismorning,Ireceivedacallfromapublisherand 44 (tell)...
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![計算（﹣3）+（﹣9）的結果是（ ） A．﹣12B．﹣6C．+6D．12]( "計算（﹣3）+（﹣9）的結果是（ ） A．﹣12B．﹣6C．+6D．12")
- 問題詳情：計算（﹣3）+（﹣9）的結果是（）A．﹣12B．﹣6C．+6D．12【回答】A知識點：各地中考題型：選擇題...
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![14c造句怎麼寫]( "14c造句怎麼寫")
- 用14c示蹤技術研究了金釵石斛光合產物運轉與分配的變化。但是，對14c數據的系統校正，迄未得到應有的重視，致使在應用14c數據解釋地層和地質現象的年代時，存在着一定程度的混亂。...
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![A 41 thinghappened 42melastSunday．Itwassuchabeautifuld...]( "A 41 thinghappened 42melastSunday．Itwassuchabeautifuld...")
- 問題詳情：A 41 thinghappened 42melastSunday．Itwassuchabeautifulday 43 Idrovetogoforalookinthecountry.Onthewaybackhome,my 44 stopped．Itwasoutofgasona 45roadfarfromatown!IdecidedtowalkuntilIfoundsomeone 46couldsellsomegas．Ihadwalkedalmostamile 4...
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![14C是一種放**同位素，在一定條件下，14N可轉變爲14C，下列說法正確的是( )A．14C和14N互爲...]( "14C是一種放**同位素，在一定條件下，14N可轉變爲14C，下列說法正確的是( )A．14C和14N互爲...")
- 問題詳情：14C是一種放**同位素，在一定條件下，14N可轉變爲14C，下列說法正確的是( )A．14C和14N互爲同位素 B．14N和C60是同素異形體C．C核素中的中子數爲8 D．14CO2的摩爾質量爲44【回答】A知識點：原子結構題型：選擇題...
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![Onceuponatime,therewasapoorman.His 41 wasalsoverypoor—a...]( "Onceuponatime,therewasapoorman.His 41 wasalsoverypoor—a...")
- 問題詳情：Onceuponatime,therewasapoorman.His 41 wasalsoverypoor—asmallandemptyhouse,whichwas 42 withspiderwebs(蜘蛛網).Peopletriedto 43 comingintohishouseastheydidn’twanttocometosucha 44 place.Andthepoormanthoughtthatpoverty(貧困)wasthe 45...
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![ItwasacoolOctoberevening.Excitementandfamilymembers 41...]( "ItwasacoolOctoberevening.Excitementandfamilymembers 41...")
- 問題詳情：ItwasacoolOctoberevening.Excitementandfamilymembers 41 thehall.Iwasonlya7-year-oldgirl,butIwasthecenterof 42 .Finally,afterweeksofpreparation,Iwould 43 allmyhardworkinadanceperformance.Everythingwouldbe 44 —soIthought.I...
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![A 41 thinghappened 42 melastSunday.Itwassuchabeautif...]( "A 41 thinghappened 42 melastSunday.Itwassuchabeautif...")
- 問題詳情：A 41 thinghappened 42 melastSunday.Itwassuchabeautifulday 43 Idrovetogoforalookinthecountry.Onthewaybackhome,my 44 stopped.Itwasoutofgasona 45 roadfarfromatown!IdecidedtowalkuntilIfoundsomeone 46 couldsellsomegas.Ihadw...
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![執行下面的程序框圖，則輸出的A. 17B. 19C. 21D. 23]( "執行下面的程序框圖，則輸出的A. 17B. 19C. 21D. 23")
- 問題詳情：執行下面的程序框圖，則輸出的A. 17B. 19C. 21D. 23【回答】C知識點：高考試題題型：選擇題...
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![Fastfoodisbecomingmoreand 41]( "Fastfoodisbecomingmoreand 41")
- 問題詳情：Fastfoodisbecomingmoreand 41 _____ popularinChina,especiallyamongchildrenandteenagers.Thereareseveralexplanationsfor itspopularity.First,itisveryconvenientand42 a lotoftime.Youjustgointoafastfoodrestauranttoorder...
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![41.Ithinkheisnot]( "41.Ithinkheisnot")
- 問題詳情：41.Ithinkheisnot______(self).Hehasbeenconcernedwith peoplearoundhim.42.Millionsoffansadmirehisathleticability,_________(motivate)andconfidence.43.___________wewillgocampingtomorrowornotdependsontheweather.44.Thetraditionalviewis________wesle...
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![MybrotherandIslippedoutofthebed.Wegrabbedour 41 ...]( "MybrotherandIslippedoutofthebed.Wegrabbedour 41 ...")
- 問題詳情： MybrotherandIslippedoutofthebed.Wegrabbedour 41 andputonourshoes.Withoutheatersinouroldhome,wearingcoatsinsidewasas 42 aswearingshirtsinsummer. Butthismorningwas 43 ;itwasChristmas.NoChristmastree。no...
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![Britishpeopleareworkingtoanolderage.41.]( "Britishpeopleareworkingtoanolderage.41.")
- 問題詳情：Britishpeopleareworkingtoanolderage.41._____numberofworking70-74-year-oldshasdoubledinrecentyears.Around10%ofpeoplein42.______(they)early70snowwork.Thisisthe43.______(high)figureonrecord.Animportantreason44._____theBritishworkintheiroldageist...
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![Amanandhisgirlfriendweremarried.Itwasalarge 41 . A...]( "Amanandhisgirlfriendweremarried.Itwasalarge 41 . A...")
- 問題詳情： Amanandhisgirlfriendweremarried.Itwasalarge 41 . Alloftheirfriendsand42cametoseethelovelyceremonyandto43inthefestivitiesandcelebrations.Allhad awonderfultime.The bridewas impressive 44 herwhiteweddinggownandthegroo...
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![31×41－11×41×2－9.5×11.]( "31×41－11×41×2－9.5×11.")
- 問題詳情：31×41－11×41×2－9.5×11.【回答】31×41－11×41×2－9.5×11＝31×41－11×41－11×41－9.5×11＝41×(31－11)－11×(41＋9.5)＝(41＋)×20－(11＋)×51＝820＋10－561－17＝252.知識點：有理數的乘除法題型：計算題...
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![ChristopherReeve, 41]( "ChristopherReeve, 41")
- 問題詳情：ChristopherReeve, 41__wasborninSeptember,1952,wasinhisfirstschoolplay 42__hewaseightandhestartedtoactinTVshowsandfilmswhilehewasstillincollege.Hemademany____43___(success)filmsandTVshowsbuthewasmostfamous___44___hisSupermanfilms.___45___(lu...
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![WASP-12b造句怎麼寫]( "WASP-12b造句怎麼寫")
- Theexoplanet,calledWASP-12b,isagasgiant,likeJupiter.WASP-12bisagaseousplanet,about1.5timesthemassofJupiter,andalmosttwicethesize.被叫作WASP-12b的行星是目前發現的最熱的行星（約4，000華氏度，或約2，200攝氏度），相比於任何一顆已知的行星，它離執行的恆星最近。...
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![下列計算正確的是( )A．(－0.875)×＝B．－×(－6)＝－3C．－7×(－3)＝21D．(－...]( "下列計算正確的是( )A．(－0.875)×＝B．－×(－6)＝－3C．－7×(－3)＝21D．(－...")
- 問題詳情：下列計算正確的是( )A．(－0.875)×＝B．－×(－6)＝－3C．－7×(－3)＝21D．(－4)×0＝－4【回答】C知識點：有理數的乘除法題型：選擇題...
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![AtanairportIoverheardafatheranddaughterduringtheir 41 ...]( "AtanairportIoverheardafatheranddaughterduringtheir 41 ...")
- 問題詳情：AtanairportIoverheardafatheranddaughterduringtheir 41 momentstogether.Her 42 wasreadyforboarding.Theyhuggedandhesaid,“Iloveyou.Iwishyou 43 ”Sheinturnsaid，“Daddy,Iwishyouenough!Too.’’ Theykissedeachother 44 andsh...
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![41.MoststudentsinChinacan’tspeakEnglish]( "41.MoststudentsinChinacan’tspeakEnglish")
- 問題詳情：studentsinChinacan’tspeakEnglish_____________(fluent).42._____________(determine)tomakehisdreamcometrue,hewenttoBeijingforfurtherstudy.problemisfarfrom___________(settle),sowewillhavetodiscussittomorrow.ymoreandmore____________(teenager)areu...
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![41.Thustheprinceandtheprincesslived]( "41.Thustheprinceandtheprincesslived")
- 問題詳情：theprinceandtheprincesslived______(和平地)together.42.Movingtoanewhouseisavery_________(緊張的）experience.43.Hec_____(抱怨)thatnothingcameoutthewayhehadexpected.44.Suddenlyhereceivedan_____(緊急的)callfromhisparents.45.Nowadaysmanypeoplewouldl...
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![下列敘述錯誤的是 （ ）A．13C和14C屬於同一種元素，它們互爲同位素B．14C...]( "下列敘述錯誤的是 （ ）A．13C和14C屬於同一種元素，它們互爲同位素B．14C...")
- 問題詳情：下列敘述錯誤的是（）A．13C和14C屬於同一種元素，它們互爲同位素B．14C和14N的質量數相等，它們的中子數不等C．6Li和7Li的電子數相等，中子數也相等D．1H和2H是不同的核素，它們的質子數相等【回答】C知識點：物質結構元素週期律單元測試題型：選擇題...
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中文谷
