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發表於:2019-08-23
問題詳情:用如圖裝置完成CO還原Fe2O3的實驗。緩慢通入一定量的CO.點燃酒精噴燈,繼續通入CO.一段時間後,當粉末全部變為黑*時,停止通入CO,熄滅酒精噴燈。(1)CO與Fe2O3反應的化學方程式是 ...
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發表於:2021-04-10
問題詳情:肽鍵的正確表示為:A.—CO—NH2— B.—CH—NO— C.—CO—NH— D.CO—NH【回答】C知識點:細胞的分子組成題型:選擇題...
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發表於:2022-04-06
問題詳情:具有廣泛用途的Co放*源首次實現了國內批量生產。另外,鈷還有多種原子Co、Co、Co和Co。以下關於鈷原子的説法正確的是()、Co、Co、Co和Co是摩爾質量不同的五種同素異形體放*源可...
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發表於:2020-04-14
問題詳情:YouSkate,TheyDonate,WeCanFillaPlateThisholidayseason,ContraCostaOncologyhasonceagainpartneredwithWalnutCreekonIcetohelpraisefundsfortheFoodBank.Foreveryiceskating...
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發表於:2017-11-11
Itmaybeathoughtofaclosefriendorfamilymemberconstantlycrtitisizingyouoracoworkeroryourbossgivingyouanidentitythatisn'treallyallignedwithwhoyoutrulyare.Butinthiscase,itapp...
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發表於:2021-09-01
問題詳情:已知:C(s)+O2(g)===CO(g) ΔH=-110.5kJ·mol-1①C(s)+O2(g)===CO2(g)ΔH=-393.51kJ·mol-1②計算反應C(s)+CO2(g)===2CO(g)的反應熱ΔH的值為 A.-283.01kJ·mol-1 B.+172.51kJ·...
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發表於:2020-02-29
問題詳情:0.1mol·L-1的K2CO3溶液中,由於CO的水解,使得c(CO)<0.1mol·L-1。如果要使c(CO)更接近於0.1mol·L-1,可以採取的措施是()A.加入少量鹽* B.加入適量的...
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發表於:2017-03-14
modularco-ordinationinbuildingThenewcarptsarshouldensurebetterco-ordination.Colourco-ordinationandnavigationarethetopmainpriorities.Policyco-ordinationwithothermajorcount...
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發表於:2016-11-07
Implementingsimpleco-occurrenceconstraintvalidation.Rulesliketheseareoftencalledco-occurrenceconstraintsorsimplyco-constraints.Theconceptsarepresentedtotheuserinatabularf...
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發表於:2017-04-06
Onekeyquestionnowistodevelopsomecongruenceonthepurposeandmanagementofsuchareserve-andonhowtoco-ordinateduringamajordisruption.Theycanco-ordinatefares,salesforces,flightsc...
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發表於:2018-08-04
line-tunableCOlaserCOlaserinthelaserfamily...
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發表於:2018-02-09
Inmostcountries,stimuluspackageswerelate,badlyco-ordinatedandtoostructural.Iranarrestedtheembassyworkersinaco-ordinatedoperationlastweekend.Then,co-ordinatedgovernmentact...
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發表於:2021-11-17
問題詳情:等於 ( )A.sin2-cos2 B.cos2-sin2 C.±(sin2-cos2)D.sin2+cos2【回答】A ...
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發表於:2019-12-27
問題詳情:下列各項中正確表示肽鍵的是()A.─CO─NH2─B.─CO─N2H2─C.─NH2─CO─D.─CO─NH─【回答】解:肽鍵是由一個氨基*的氨基-NH2和另一個氨基*的羧基-COOH脱去1分子水形成的,因此肽鍵的...
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發表於:2018-04-19
TheyslippedtheundercovercopaMickeyFinn.Today,Iwasboredanddecideditwouldbefuntopretendtobeanundercovercopandpulloverothercars.ThefirstcarIpulledoverwasarealundercovercop.B...
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發表於:2017-06-03
Butthatdoesnotmeantransatlanticco-operationisasham.Whileappealingforco-operation,thepresidentlaidbaretheideologicaldividewiththeRepublicans.Thismeetingalsodecidedthattran...
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發表於:2021-11-20
問題詳情:ColorsoftenappearinAmerican'severydaytalk.Redisa 21 coloranditisoftenusedtoexpressheatandstrong 22 likeanger.Americansmaysaytheyareredhotaboutsomething...
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發表於:2018-11-30
I'dlikeyoutomeetmyco-worker,RobertJehan.Yualsosufferedhandandneckinjuries,accordingtoaco-workerattheconsulate.IknowJane.Sheismyco-worker.Sheisaverycharminggirl.Hisco-wor...
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發表於:2017-06-11
Carbonmonoxide(CO)isacolorless,odorlessgasproducedbyincompletecombustionoffuelsorothermaterialcontainingcarbon.ThoonhasbeenPresidentandCo-COOofGoldmanSachsforyearsbeforeh...
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發表於:2019-11-26
問題詳情:Aboyandagirlwereplayingtogether.Theboyhada 41 (collect)ofmarbles.Thegirlhadsomesweetswith 42 .Theboytoldthegirlthathe 43 ...
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發表於:2019-03-12
問題詳情: —Where thewolfcomefrom?—It fromEurope.A.do;comes B.is;is C.does;comes D.does;come【回答】C知識點:動詞時態題型:選擇題...
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發表於:2019-12-06
問題詳情:Haveyoueverbeeninaconflict(衝突)?Doyouknowhowtosolveit?Conflictresolutionisapeacefulwayoftryingtosolveaconflict.Bothsidesintheconflictexplainwhattheythinkhappened...
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發表於:2020-11-08
問題詳情:Colorisveryimportantinourlife.Ithasalottodowithour 1.Colorsaredividedintohot,coldorneutral(中*的)ones.Redandyelloware2 colorsbecausetheymakearoomfeelwarmer.Th...
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發表於:2020-11-13
問題詳情:造成*雨的主要物質是 A、CH4和CO B、SO2和CO C、CO和CO2 D、SO2和NO2【回答】D知識點:燃料的合理利用與開發題型:選擇題...
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發表於:2020-10-10
問題詳情:.已知:①CO(g)+H2O(g)═CO2(g)+H2(g) ∆H1;②CH4(g)+H2O(g)═CO(g)+3H2(g) ∆H2。下列推斷正確的是 ...