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發表於:2022-08-10
問題詳情:下列敍述中,正確的是()A.同質量的H2和Cl2含有的分子數相等B.SO的摩爾質量是96g·mol-1C.阿伏加德羅常數恰好為6.02×1023mol-1D.1molCO2的質量為44g/mol【回答】知識點:物質的量單元測...
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發表於:2020-12-11
問題詳情:________Iknow,hehasbeentotheUSAforfurtherstudy.()A.Sofaras B.Sofar C.Aslongas D.Assoonas【回答】A知識點:詞組短語題型:選擇題...
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發表於:2021-12-17
問題詳情:下列説法不正確的是A.*氣可用於合成*物 B.SO2環境污染大,工業生產中沒有價值C.純鹼在造紙工業中有着重要的應用 ...
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發表於:2019-11-05
問題詳情:當溶液中有大量的H+和Ba2+時,下列離子中有可能大量存在的是( )A.SO B.CO C.Cl- D.OH-【回答】C知識點:離子反應題型:選擇題...
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發表於:2021-07-01
問題詳情:通入水中所得溶液呈鹼*的氣體是 A.NH3 B.NO2 C.SO2 D.HCl【回答】A知識點:氣體的製備及實驗方案設計...
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發表於:2021-01-26
問題詳情:在含有大量的Na+、OH﹣、NO3﹣,該溶液中還可能大量存在的離子是()A.NH4+ B.H+ C.SO42﹣D.Mg2+【回答】【考點】離子共存問題.【分析】根據離子之間不能結合生成沉澱、氣體、水、弱電解質...
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發表於:2019-02-09
問題詳情:下列説法不正確的是A.1molNH4+的質量為18g B.SO2的摩爾質量為64g·mol-1C.摩爾是描述物質所含微粒多少的物理量 D.一個水...
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發表於:2021-04-22
問題詳情:已知某溶液含有Na+、Ba2+、Fe2+三種陽離子,那麼溶液中的*離子可能是()A.SO B.Cl- C.OH- D.CO【回答】B...
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發表於:2020-03-08
問題詳情:下列有關物質*質的敍述正確的是( )A.明*和芒*均具有淨水作用B.*水久置後,漂白*和**均增強C.SO2通入Ba(NO3)2溶液中有沉澱產生D.NH3通入AlCl3溶液至過量先沉澱後沉澱溶解【回答】...
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發表於:2020-05-28
問題詳情:Hurryup, youcan'tcatchtheearlybus.()A.so B.and C.or【回答】C;知識點:連詞題型:選擇題...
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發表於:2022-08-12
問題詳情:下列氣體既易溶於水並且水溶液顯鹼*的是( ) A.NH3 B.HCl C.SO2 D.CH4 【回答】A知識點:物質的分離提純和檢驗題型:選擇題...
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發表於:2020-01-09
問題詳情:在KHSO4的稀溶液中和熔融狀態下都存在的離子是()A.K+ B.H+ C.SO D.HSO【回答】A知識點:電離平衡題型:選擇題...
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發表於:2020-10-09
問題詳情: Thepriceofelectricityisonanupwardtrend,so______yourelectriccarwillsomehowburnabigholeinyourpocket.A.purchasing B.charging C....
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發表於:2019-11-19
問題詳情:Teensarebusypeople.Theybalancehighschoolandfriends;someaddjobsandextracurricular(課外的)activitiestothemix. 36 Involveyourteenwithavarietyofactivitiesfromyourli...
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發表於:2022-04-16
Thisissososotrueforme.Heplaystennisonlysoso.Infact,love,notjustsoso."How'sbusiness?""Oh,onlysoso."Ineverdidseeanythingsoslenderandsofine,sosoftandsoneat.OK.I'msosor...
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發表於:2018-09-02
Infact,love,notjustsoso.TheywereSpanishpuddings,tastedjustsoso!ButItellyou,thisswordisjustsoso.Mygradeisjustsoso,butI'mnotworried.Lifeisjustsoso,keeppositivemood,against...
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發表於:2021-04-03
問題詳情: ZhouHualikesdrawing,so________Ann. A.is B.does C.was D.do【回答】B知識點:相似相近詞比較題型:選擇題...
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發表於:2018-06-02
Someso-and-sohaspinchedmytowel.PeoplehavedonesoinallageshindusliveaccordingtoHinduismmuslimsliveaccordingtoIslamandso-and-solivesaccordingtosuch-and-suchism.Canalsobeasso...
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發表於:2019-11-11
問題詳情:Somefriendsinviteyouoverandserveyouadeliciousdinner. Someonelendsyouhiscarwhilethere’ssomethingwrongwithyours.Youaresick,andafriendbringsyouamealandcaresforyou....
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發表於:2018-11-17
Heinquiredaboutthevarieties,specificationsandprice,andsoonandsoforth.seenmanybeautifulplacesandmadealotoffriendsandsoonandsoforth.Andsoonandsoforth...Beforeweareforgotten...
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發表於:2021-02-01
問題詳情:--IreallyhopeIcangotoBeijingnextyear.--So______I.A.did B.do C.am D.was 【回答】B知識點:倒裝句題型:選擇...
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發表於:2022-04-08
問題詳情: So______hadhebeeninwatchingthecarpassingbythathedidn’tnoticehisfriends..A.disturbed B.surprised C.excited D.abso...
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發表於:2017-07-10
"Therestwere"so-so"or"unsure.Alasresultswereonlyso-so.Infact,manythingsandpeoplearejustso-so....
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發表於:2020-08-29
問題詳情:---Iwanttoknowifyoursonwillgotothezoo.Ifyoursondoes,so__________.---Well,heisgladtobethere. does mine ...
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發表於:2021-03-01
問題詳情:—TheyhavebeentoAustralia.—So_____I. been ...