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關於16B.18C.20D.16的百科

等腰三角形兩邊長分別為4和8,則這個等腰三角形的周長為(  ) A.16B.18C.20D.16或20 
2分鐘內通過某導體橫截面的電量為18C,電流做功108J,則通過導體的電流為
下列說法正確的是(  )A.CH4的摩爾質量為16B.1molH2O的質量為18g/molC.H2的氣體摩爾體...
  16      Yourschooldaysshouldbesomeofthebestandhappies...
  •   16      Yourschooldaysshouldbesomeofthebestandhappies...

  • 問題詳情:  16      Yourschooldaysshouldbesomeofthebestandhappiestdaysofyourlife.Howcanyougainthemostfromthem,andensurethatyoudonotwastethiswonderfulopportunitytolearn?    Bepositiveaboutschool!Don’tsaythingswhicharedifficultorboring.Beinter...
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Parentsfeelthatitisdifficulttolivewithteenagers.  16   ...
  • Parentsfeelthatitisdifficulttolivewithteenagers.  16   ...

  • 問題詳情:Parentsfeelthatitisdifficulttolivewithteenagers.  16   Accordingtoarecentresearch,themostcommonargumentbetweenparentsandteenagersisthatregardinguntidinessanddailyroutinetasks.  17   Ontheotherhand,teenagerslosetheirpatiencecontinual...
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16.
  • 16.

  • 問題詳情:16.____Homecanbeagreatplaceforchildrentostudy.It’simportanttoprovideaworkspaceoftheirownwheretheycanreadbooksorjustwritealettertotheirfriends.●Location(位置)17.   Kitchenanddiningroomarenotsowellsuitedforregularstudy,sincebooksandpensget...
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若一個菱形的一條邊長為4cm,則這個菱形的周長為(   ) A.20cm              B.18c...
1.孟德爾的兩對相對*狀*遺傳實驗中,F2代中能穩定遺傳的個體和重組型個體所佔的比例A.4/16和2/16B...
在兩對相對*狀*遺傳實驗中,F2代中能穩定遺傳的個體和重組型個體所佔的比是(  )A.1/16和6/16B....
已知某空間幾何體的三檢視如圖所示,則該幾何體的體積是(  )A.16B.32C.48D.144
若3anb2n-1和a4bm是同類項,則mn的值(   )A.28B.﹣28C.-20D.20
  • 若3anb2n-1和a4bm是同類項,則mn的值(   )A.28B.﹣28C.-20D.20

  • 問題詳情:若3anb2n-1和a4bm是同類項,則mn的值(   )A.28B.﹣28C.-20D.20【回答】A【分析】根據同類項的定義即可求出*【詳解】由題意可知:∴∴mn=28故*為:A【點睛】本題考查了同類項的定義,掌握同類項的定義是解題的關鍵.知識點:整式的加減題型:選擇題...
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Mostofusleadabusylife.  16
  • Mostofusleadabusylife.  16

  • 問題詳情:Mostofusleadabusylife.  16_Wethink,“IfIreachedmy goal,thenIwouldbehappy”,or“IfIcouldgetabetterjob,thenIwouldenjoylife.”Butwhynotenjoyliferightnow?Firstly,taketimetonoticeandappreciate thebeautyinyourownsurroundings. 17“Thereisagreatbigwo...
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某導體的電阻為10Ω,15s內通過該導體的某一橫截面的電量為18C,求:                   ...
下列幾種估測最符合實際情況的是(     )A.人步行的速度約為5m/s     B.全新的2B鉛筆長約18c...
數列{an}滿足an=4an-1+3,且a1=1,則此數列的第3項是A.15B.255C.20D.31
 16 Ifyouaregrowingtomatoesinyourbackyardforsaleyouarep...
  •  16 Ifyouaregrowingtomatoesinyourbackyardforsaleyouarep...

  • 問題詳情: 16 Ifyouaregrowingtomatoesinyourbackyardforsaleyouareproducingforthemarket.Youmightsellsometoyourneighborandsometothelocalmanagerofthesupermarket.Butineithercase,youareproducingforthemarket.  17  Ifpeoplestopbuyingtomatoes,youwillstopp...
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下列說法中,正確的是   A.34S原子核內的中子數為16B.1H和2H的化學*質相同C.H216O與H218...
 16  Scientistsandexpertshaveprovedtheuniquenessoffinge...
  •  16  Scientistsandexpertshaveprovedtheuniquenessoffinge...

  • 問題詳情: 16  Scientistsandexpertshaveprovedtheuniquenessoffinger-printsanddiscoveredthatnoexactlysimilarpatternispassedonfromparentstochildren,thoughnobodyknowswhythisisthecase.Theridge(隆起)structureonaperson'sfingersdoesnotchangewithgrowthandisno...
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 (16)
  •  (16)

  • 問題詳情: (16)____Youprobablythinkyouwillneverbeatopstudent.Thisisnotnecessarilyso,however.Anyonecanbecomeabetterstudentifheorshewantsto.Here’show: Planyourtimecarefully.Whenplanningyourwork,youshouldmakealistofthingsthatyouhavetodo.Aftermakingthis...
  • 4957
Catsarethosecutecreaturesthatwelovehavinginourhomes. 16...
  • Catsarethosecutecreaturesthatwelovehavinginourhomes. 16...

  • 問題詳情:Catsarethosecutecreaturesthatwelovehavinginourhomes. 16 Ifyoudon’tknowtheadvantagesyet,Icanenlighten(啟發)you.Allyougottodoistoreadbelow.Comeon,itisworthyourtime.1.Theyaregreathang-outbuddies(夥伴).   Areyoutoosadaboutsleepingaloneeveryni...
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已知等差數列{an}的前n項和為Sn,且S10=12,S20=17,則S30為A.30B.25C.20D.15
  • 已知等差數列{an}的前n項和為Sn,且S10=12,S20=17,則S30為A.30B.25C.20D.15

  • 問題詳情:已知等差數列{an}的前n項和為Sn,且S10=12,S20=17,則S30為A.30B.25C.20D.15【回答】.D【解析】因為Sn是等差數列{an}的前n項和,所以S10,S20-S10,S30-S20成等差數列,所以S10+(S30-S20)=2(S20-S10),所以12+(S30-17)=2×(17-12),解得S30=15.【備註】無知識點:數列題型...
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16.Thestorytellerwastellingusastoryinavividway
  • 16.Thestorytellerwastellingusastoryinavividway

  • 問題詳情:16.Thestorytellerwastellingusastoryinavividway____________________ithimself.(asif)這個講故事的人以一種生動的方式給我們講了一個故事,好像他親身經歷過一樣。17.Anofficialsaysabout3.33millionhectaresofthearea'sfarmland__________________crops.(too…t...
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已知等腰三角形的一邊長為4,另一邊長為8,則這個等腰三角形的周長為(  ) A.16B.20或16C.20D....
MaketherightchoicesWhatislife’sgreatestgift? 16
  • MaketherightchoicesWhatislife’sgreatestgift? 16

  • 問題詳情:MaketherightchoicesWhatislife’sgreatestgift? 16______Choiceistheabilitytoselectonecourseofactionfromasetofalternativestoachieveagoal.Whatissogreataboutchoice?Ittransformsusfromdumbanimalsintoartists.EachofusbecomesanotherMichelangelo.Choice...
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設{an}是等差數列,且a2+a3+a4=15,則這個數列的前5項和S5=(  ) A.10B.15C.20D...