• 2022-07-26 问题

    KBr03是一种强氧化剂,在酸性溶液中与还原物质作用,其半反应为 . A: Br0 3 -+6H ++5e==1/2Br 2+3H 20 B: BrO 3 -+6H ++6e== Br -+3H 20 C: BrO 3+3H 20+6e== Br -+60H - D: BrO 3+6H ++e==Br - +3H 20

    KBr03是一种强氧化剂,在酸性溶液中与还原物质作用,其半反应为 . A: Br0 3 -+6H ++5e==1/2Br 2+3H 20 B: BrO 3 -+6H ++6e== Br -+3H 20 C: BrO 3+3H 20+6e== Br -+60H - D: BrO 3+6H ++e==Br - +3H 20

  • 2022-11-01 问题

    下列微粒中,不具氧化性的是() A: F B: Cl C: BrO D: I

    下列微粒中,不具氧化性的是() A: F B: Cl C: BrO D: I

  • 2022-06-06 问题

    找出括号里读音不同的单词。 A: (th)ese B: (th)ey C: bro(th)er D: u>;.(th)ree

    找出括号里读音不同的单词。 A: (th)ese B: (th)ey C: bro(th)er D: u>;.(th)ree

  • 2022-11-01 问题

    下列微粒中,不具氧化性的是( ) A: F<sub>2</sub> B: Cl<sup>-</sup> C: BrO<sup>-</sup> D: I<sub>2</sub>

    下列微粒中,不具氧化性的是( ) A: F<sub>2</sub> B: Cl<sup>-</sup> C: BrO<sup>-</sup> D: I<sub>2</sub>

  • 2022-06-11 问题

    32. 在酸性溶液中 KBrO;与过量的 KI 反应,达到平衡时溶液中的 ()。 A: A.两电对BrO=/Br-与I2/2I的电位相等 B: B.反应产物I2与KBr的物质的量相等 C: C.溶液中已无BrO存在 D: D.反应中消耗的KBrO:的物质的量与产物Iz的物质的量之比为1:3

    32. 在酸性溶液中 KBrO;与过量的 KI 反应,达到平衡时溶液中的 ()。 A: A.两电对BrO=/Br-与I2/2I的电位相等 B: B.反应产物I2与KBr的物质的量相等 C: C.溶液中已无BrO存在 D: D.反应中消耗的KBrO:的物质的量与产物Iz的物质的量之比为1:3

  • 2022-06-17 问题

    II. Listening to the news reports, (10%) Both the news reports will be spoken twice.News 1 Question 11-12 will be based on news 1. ​​Why couldn’t Jafiar Bro have his metal rods removed? A: Because the surgery had failed. B: Because he did not want to have them removed. C: Because he could not afford it. D: Because he received financial help as a former college athlete.

    II. Listening to the news reports, (10%) Both the news reports will be spoken twice.News 1 Question 11-12 will be based on news 1. ​​Why couldn’t Jafiar Bro have his metal rods removed? A: Because the surgery had failed. B: Because he did not want to have them removed. C: Because he could not afford it. D: Because he received financial help as a former college athlete.

  • 2022-06-17 问题

    II. Listening to the news report. (10%)Directions: In this section, you will hear two news reports followed by two or three questions each. News One​浏览器不支持音频​Why couldn't Jafiar Bro have his metal rods removed? A: Because the surgery had failed. B: Because he did not want to have them removed. C: Because he could not afford it. D: Because he received financial help as a former college athlete.

    II. Listening to the news report. (10%)Directions: In this section, you will hear two news reports followed by two or three questions each. News One​浏览器不支持音频​Why couldn't Jafiar Bro have his metal rods removed? A: Because the surgery had failed. B: Because he did not want to have them removed. C: Because he could not afford it. D: Because he received financial help as a former college athlete.

  • 2021-04-14 问题

    PartIIICloze(20points,1pointeach)Directions:Thereare20blanksinthefollowingpassage.ForeachblanktherearefourchoicesmarkedA),B),C)andD)belowthepassage.YoushouldchoosetheONEthatbestfitsintothepassage.Mydaughtersawacolorfulrainbowtheotherdayafterathunderstorm.Shecalledtometolookoutofthe_51_andseeitaswell.AsIgazeduponit,Ialsorememberedoneofthevery_52_timeIeversawarainbowasaboy.Ihadbeensittinginthehouseforanhourwaiting_53_fortheraintostopsoIcouldgooutandplay.WhenitfinallydidstopI_54_outsideandwasgreetedwiththeglorious_55_ofarainbowcurvingthroughthesky.Ihadjustrecentlyheardtheold_56_ofleprechauns(魔法精灵)hidingapotofgoldattheendofarainbow._57_,Ilookedtowheretherainbowseemedtobetouchingthe_58_inthefardistance.Istartedtoquickly_59_therailroadtracksnearourhouse_60_thatelusive(难找的)treasure.ThequickerIran,_61_,themoretherainbowbeganto_62_.Finally,Ifoundmyself_63_asfastasIpossiblycould,butitwastoolate.BythetimeIgottheretherainbowanditspotof_64_weregone.Sadlythatwasn’tthelasttimeIfoundmyselfchasingafter_65_treasure.OvertheyearsIranafterfame,success,money,and_66_relationshipsthatIthoughtwouldbringmethe_67_Ialwayswanted.Noneofthemdid,however.Ittookmealongtimeto_68_thetruetreasurethatdoesn’tfade,orflee.Thattreasureisloveanditisfreetoall.I_69_thistreasureintomyheart,soul,andlifeand_70_itwithothersaswell.ThefunnythingtoowasthatthemoreloveIgaveaway,themoreloveIhadwithinme.51.A)fenceB)windowC)cloudsD)corner52.A)wonderfulB)badC)firstD)old53.A)joyfullyB)impatientlyC)hurriedlyD)aimlessly54.A)racedB)walkedC)satD)stood55.A)coldB)safetyC)movementD)sight56.A)experienceB)recordC)legendD)evidence57.A)ExcitedB)DisappointedC)NervousD)Frightened58.A)skyB)sideC)seaD)ground59.A)movearoundB)rundownC)jumpoverD)pickup60.A)inchargeofB)incaseofC)insearchofD)infearof61.A)thoughB)thereforeC)thenD)still62.A)leaveB)riseC)fallD)fade63.A)thinkingB)prayingC)runningD)shouting64.A)goldB)colorsC)waterD)fish65.A)valuableB)falseC)beautifulD)interesting66.A)everB)alsoC)alreadyD)even67.A)luckB)positionC)happinessD)love68.A)findB)knowC)realizeD)recognize69.A)dividedB)bro

    PartIIICloze(20points,1pointeach)Directions:Thereare20blanksinthefollowingpassage.ForeachblanktherearefourchoicesmarkedA),B),C)andD)belowthepassage.YoushouldchoosetheONEthatbestfitsintothepassage.Mydaughtersawacolorfulrainbowtheotherdayafterathunderstorm.Shecalledtometolookoutofthe_51_andseeitaswell.AsIgazeduponit,Ialsorememberedoneofthevery_52_timeIeversawarainbowasaboy.Ihadbeensittinginthehouseforanhourwaiting_53_fortheraintostopsoIcouldgooutandplay.WhenitfinallydidstopI_54_outsideandwasgreetedwiththeglorious_55_ofarainbowcurvingthroughthesky.Ihadjustrecentlyheardtheold_56_ofleprechauns(魔法精灵)hidingapotofgoldattheendofarainbow._57_,Ilookedtowheretherainbowseemedtobetouchingthe_58_inthefardistance.Istartedtoquickly_59_therailroadtracksnearourhouse_60_thatelusive(难找的)treasure.ThequickerIran,_61_,themoretherainbowbeganto_62_.Finally,Ifoundmyself_63_asfastasIpossiblycould,butitwastoolate.BythetimeIgottheretherainbowanditspotof_64_weregone.Sadlythatwasn’tthelasttimeIfoundmyselfchasingafter_65_treasure.OvertheyearsIranafterfame,success,money,and_66_relationshipsthatIthoughtwouldbringmethe_67_Ialwayswanted.Noneofthemdid,however.Ittookmealongtimeto_68_thetruetreasurethatdoesn’tfade,orflee.Thattreasureisloveanditisfreetoall.I_69_thistreasureintomyheart,soul,andlifeand_70_itwithothersaswell.ThefunnythingtoowasthatthemoreloveIgaveaway,themoreloveIhadwithinme.51.A)fenceB)windowC)cloudsD)corner52.A)wonderfulB)badC)firstD)old53.A)joyfullyB)impatientlyC)hurriedlyD)aimlessly54.A)racedB)walkedC)satD)stood55.A)coldB)safetyC)movementD)sight56.A)experienceB)recordC)legendD)evidence57.A)ExcitedB)DisappointedC)NervousD)Frightened58.A)skyB)sideC)seaD)ground59.A)movearoundB)rundownC)jumpoverD)pickup60.A)inchargeofB)incaseofC)insearchofD)infearof61.A)thoughB)thereforeC)thenD)still62.A)leaveB)riseC)fallD)fade63.A)thinkingB)prayingC)runningD)shouting64.A)goldB)colorsC)waterD)fish65.A)valuableB)falseC)beautifulD)interesting66.A)everB)alsoC)alreadyD)even67.A)luckB)positionC)happinessD)love68.A)findB)knowC)realizeD)recognize69.A)dividedB)bro

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