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關於4NAB.25的百科

NA為阿伏加德羅常數的值。下列説法正確的是(  )A.1mol*醇分子中含有的共價鍵數為4NAB.25℃時,1...
設NA為阿伏加德羅常數的值。下列敍述正確的是(  )A.1mol*醇中含有C—H鍵的數目為4NAB.25℃,p...
-25=0
  • -25=0

  • 問題詳情:-25=0【回答】知識點:立方根題型:計算題...
  • 4713
25的算術平方根是(   ).A.5   B.±5  C.-25   D.±25
Americanparentsusuallythinkthattheirchild(25) havelessp...
  • Americanparentsusuallythinkthattheirchild(25) havelessp...

  • 問題詳情:Americanparentsusuallythinkthattheirchild(25) havelesspocketmoneythanthechildrenwhomheoftenconnectswitheveniftheyarewealthier.Andtheydon’texpecttheirchildrentocomparewiththericherifsomeconditionsmake(26)   impossibleforthechildrentogetthesam...
  • 30539
設NA為阿伏伽德羅常數的值。下列敍述正確的是A.1mol*醇中含有C-H鍵的數目為4NAB.25℃,PH=13...
25×-(-25)×+25×         
  • 25×-(-25)×+25×         

  • 問題詳情:25×-(-25)×+25×         【回答】        知識點:有理數的乘除法題型:計算題...
  • 11752
    Everyoneofushasbeenhurtbyothers–25
  •     Everyoneofushasbeenhurtbyothers–25

  • 問題詳情:    Everyoneofushasbeenhurtbyothers–25____bytheirwordsoractions.Inthosemoments,youmayfeelsomuchanger26____youwanttohurttheotherpersontoo.    Butweallknowthatrevengedoesn’tgetusanywhere.So,inordertoliveahappylife,thebestway27____(dea...
  • 7014
下列有關阿伏加德羅常數(NA)的説法錯誤的是   (  )A.64gO2所含的分子數目為4NAB.0.5mol...
設NA為阿伏加德羅常數的值,下列説法正確的是(  )A.常温常壓下,8g**中含C—H鍵的數目為4NAB.25...
25.—Areyouafraidofdogs?  —
  • 25.—Areyouafraidofdogs?  —

  • 問題詳情:25.—Areyouafraidofdogs?  —______________.      A.Yes,Iam.  B.Yes,Ido.          C.No,Idon’t               D.Yes,Idid【回答】A.知識點:情景交際題型:選擇題...
  • 13944
設NA為阿伏伽德羅常數的值。下列敍述正確的是A.1mol*醇中含有C—H鍵的數目為4NAB.25℃,pH=13...
cos(α-35°)cos(α+25°)+sin(α-35°)sin(α+25°)=
ThestoryoftheEnglishlanguageis(25)
  • ThestoryoftheEnglishlanguageis(25)

  • 問題詳情:ThestoryoftheEnglishlanguageis(25)________storyofchange.TheOldEnglishlanguage,orOldEnglish,isquitedifferent(26)________ModernEnglish.WecanneverunderstandModernEnglish(27)________westudyOldEnglish.Someofthewordsarethesame(28)________manyarenot...
  • 22431
25÷23=    .
  • 25÷23=    .

  • 問題詳情:25÷23=  .【回答】4.知識點:(補充)整式的除法題型:填空題...
  • 23180
觀察下列算式:5×5=25,  8×8=64, 12×12=144,   25×25=625,        ...
5÷等於()A.1         B.25         C.1或25     D.-1或-25
25.Thebankisreportedinthelocalnewspaper
  • 25.Thebankisreportedinthelocalnewspaper

  • 問題詳情:25.Thebankisreportedinthelocalnewspaper__________(rob)inbroaddaylightyesterday.26.Hardlyhadwearrivedatthecinema_________thefilmstarted.27.Weneedstrongspiritofteamwork__________wearetoovercomethedifficulties.28.WecometounderstandthatMr.Blackis...
  • 14818
符合東半球、北半球的地點是( )      A.25°N,25°W    B.25°S,25°E     C....
25.Youwillpay
  • 25.Youwillpay

  • 問題詳情:25.Youwillpay_______ifyouwanttostayintheEnglishclubforhalfayear.A.300yuan   B.600yuan   C.1200yuan   D.2400yuan26.YoucanvisitOceanMuseum_______. A.onSaturday   B.onWednesday   C.onMonday   D.anytime27.Onecangetfreeexaminati...
  • 10679
25年來,
  • 25年來,

  • 問題詳情:25年來,______以社區為家,時刻把羣眾冷暖放在心上,把全部心思投入到社區工作中,帶領社區黨員羣眾創造*地開展工作。2017年11月24日,省委宣傳部追授她“齊魯時代楷模”榮譽稱號。()A.黃大年  B.陳葉翠  C.南仁東  D.楊科璋【回答】B【考點】時事*.【分析】本題考查時事*...
  • 29969
25÷5×(﹣)÷(﹣);
  • 25÷5×(﹣)÷(﹣);

  • 問題詳情:25÷5×(﹣)÷(﹣);【回答】原式=25×××=;知識點:有理數的乘除法題型:計算題...
  • 20901
25. ----We
  • 25. ----We

  • 問題詳情:25. ----We______fromJaneforalongtime.(nothear)----Whatdoyousupposehappenedtoher?26. Thesurfaceofthetable______smoothenough.(feel)27. Thetown_____alotsinceIwastherelastin1980.(change)28. I____tocallonyoubutwaspreventedfromdoingso.(mean)29....
  • 32845
NA表示阿伏伽德羅常數,下列判斷正確的是( )A.1molNa2O2固體中含離子總數為4NAB.1molCl2...
下列説法正確的是(NA為阿伏加德羅常數)  (   )A.124gP4含有P―P鍵的個數為4NAB.12g石墨...