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发表于:2019-08-23
问题详情:用如图装置完成CO还原Fe2O3的实验。缓慢通入一定量的CO.点燃酒精喷灯,继续通入CO.一段时间后,当粉末全部变为黑*时,停止通入CO,熄灭酒精喷灯。(1)CO与Fe2O3反应的化学方程式是 ...
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发表于:2019-03-12
问题详情: —Where thewolfcomefrom?—It fromEurope.A.do;comes B.is;is C.does;comes D.does;come【回答】C知识点:动词时态题型:选择题...
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发表于:2021-11-20
问题详情:ColorsoftenappearinAmerican'severydaytalk.Redisa 21 coloranditisoftenusedtoexpressheatandstrong 22 likeanger.Americansmaysaytheyareredhotaboutsomething...
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发表于:2017-03-14
modularco-ordinationinbuildingThenewcarptsarshouldensurebetterco-ordination.Colourco-ordinationandnavigationarethetopmainpriorities.Policyco-ordinationwithothermajorcount...
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发表于:2020-11-13
问题详情:造成*雨的主要物质是 A、CH4和CO B、SO2和CO C、CO和CO2 D、SO2和NO2【回答】D知识点:燃料的合理利用与开发题型:选择题...
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发表于:2017-06-03
Butthatdoesnotmeantransatlanticco-operationisasham.Whileappealingforco-operation,thepresidentlaidbaretheideologicaldividewiththeRepublicans.Thismeetingalsodecidedthattran...
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发表于:2020-04-14
问题详情:YouSkate,TheyDonate,WeCanFillaPlateThisholidayseason,ContraCostaOncologyhasonceagainpartneredwithWalnutCreekonIcetohelpraisefundsfortheFoodBank.Foreveryiceskating...
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发表于:2018-08-04
line-tunableCOlaserCOlaserinthelaserfamily...
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发表于:2021-09-01
问题详情:已知:C(s)+O2(g)===CO(g) ΔH=-110.5kJ·mol-1①C(s)+O2(g)===CO2(g)ΔH=-393.51kJ·mol-1②计算反应C(s)+CO2(g)===2CO(g)的反应热ΔH的值为 A.-283.01kJ·mol-1 B.+172.51kJ·...
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发表于:2019-11-26
问题详情:Aboyandagirlwereplayingtogether.Theboyhada 41 (collect)ofmarbles.Thegirlhadsomesweetswith 42 .Theboytoldthegirlthathe 43 ...
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发表于:2021-11-17
问题详情:等于 ( )A.sin2-cos2 B.cos2-sin2 C.±(sin2-cos2)D.sin2+cos2【回答】A ...
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发表于:2018-04-19
TheyslippedtheundercovercopaMickeyFinn.Today,Iwasboredanddecideditwouldbefuntopretendtobeanundercovercopandpulloverothercars.ThefirstcarIpulledoverwasarealundercovercop.B...
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发表于:2018-11-30
I'dlikeyoutomeetmyco-worker,RobertJehan.Yualsosufferedhandandneckinjuries,accordingtoaco-workerattheconsulate.IknowJane.Sheismyco-worker.Sheisaverycharminggirl.Hisco-wor...
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发表于:2020-10-10
问题详情:.已知:①CO(g)+H2O(g)═CO2(g)+H2(g) ∆H1;②CH4(g)+H2O(g)═CO(g)+3H2(g) ∆H2。下列推断正确的是 ...
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发表于:2017-06-11
Carbonmonoxide(CO)isacolorless,odorlessgasproducedbyincompletecombustionoffuelsorothermaterialcontainingcarbon.ThoonhasbeenPresidentandCo-COOofGoldmanSachsforyearsbeforeh...
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发表于:2018-02-09
Inmostcountries,stimuluspackageswerelate,badlyco-ordinatedandtoostructural.Iranarrestedtheembassyworkersinaco-ordinatedoperationlastweekend.Then,co-ordinatedgovernmentact...
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发表于:2017-04-06
Onekeyquestionnowistodevelopsomecongruenceonthepurposeandmanagementofsuchareserve-andonhowtoco-ordinateduringamajordisruption.Theycanco-ordinatefares,salesforces,flightsc...
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发表于:2021-04-10
问题详情:肽键的正确表示为:A.—CO—NH2— B.—CH—NO— C.—CO—NH— D.CO—NH【回答】C知识点:细胞的分子组成题型:选择题...
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发表于:2019-12-27
问题详情:下列各项中正确表示肽键的是()A.─CO─NH2─B.─CO─N2H2─C.─NH2─CO─D.─CO─NH─【回答】解:肽键是由一个氨基*的氨基-NH2和另一个氨基*的羧基-COOH脱去1分子水形成的,因此肽键的...
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发表于:2017-11-11
Itmaybeathoughtofaclosefriendorfamilymemberconstantlycrtitisizingyouoracoworkeroryourbossgivingyouanidentitythatisn'treallyallignedwithwhoyoutrulyare.Butinthiscase,itapp...
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发表于:2020-02-29
问题详情:0.1mol·L-1的K2CO3溶液中,由于CO的水解,使得c(CO)<0.1mol·L-1。如果要使c(CO)更接近于0.1mol·L-1,可以采取的措施是()A.加入少量盐* B.加入适量的...
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发表于:2016-11-07
Implementingsimpleco-occurrenceconstraintvalidation.Rulesliketheseareoftencalledco-occurrenceconstraintsorsimplyco-constraints.Theconceptsarepresentedtotheuserinatabularf...
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发表于:2022-04-06
问题详情:具有广泛用途的Co放*源首次实现了国内批量生产。另外,钴还有多种原子Co、Co、Co和Co。以下关于钴原子的说法正确的是()、Co、Co、Co和Co是摩尔质量不同的五种同素异形体放*源可...
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发表于:2019-12-06
问题详情:Haveyoueverbeeninaconflict(冲突)?Doyouknowhowtosolveit?Conflictresolutionisapeacefulwayoftryingtosolveaconflict.Bothsidesintheconflictexplainwhattheythinkhappened...
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发表于:2020-11-08
问题详情:Colorisveryimportantinourlife.Ithasalottodowithour 1.Colorsaredividedintohot,coldorneutral(中*的)ones.Redandyelloware2 colorsbecausetheymakearoomfeelwarmer.Th...