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發表於:2020-03-24
問題詳情:如圖所示,一個電燈泡的實物電路,存在的接線故障是()sA.電源短路B.電燈斷路 C.開關短路D.電燈短路i【回答】C.知識點:電流和電路題型:選擇題...
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發表於:2018-07-10
TheComparisonofSA8000andOHSMS;SelecttheEnablesystemadministrator(SA)usernamecheckbox.CleartheEnablesystemadministrator(SA)usernamecheckbox.First,wehavebuiltEMFprojectsfor...
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發表於:2020-08-12
問題詳情:-Howmuchisthebook? -Fiftyyuan,butthere'sa_______offerifyoubuytwo. A.big B.special C.cheap D.suitable【回答】B知識點:相似相近...
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發表於:2019-12-31
問題詳情:______peopledecidedtobuytheirowncarsearlierbecauseof“SARS” A.Anumber B.Agreatnumberof C.Agreatdealof ...
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發表於:2020-01-03
問題詳情:(2018年杭州卷)如圖,質量分佈均勻的長方體重物A、B,密度分別為ρA和ρB,底面積分別為SA和SB,且SA>SB,將它們放在水平面上,它們對地面的壓強相等。現水平割去上半部分(如圖中虛線所示),剩餘...
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發表於:2022-04-11
問題詳情: ---Ihavetogettothepostofficebysixo'clock,butlook,it'salmostsix.---________.Thisclockistwentyminutesfast. A.That'stoobad B.Noproblem C.Sure...
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發表於:2020-03-20
問題詳情:單項選擇。—DoyouoftenwatchManandNatureonTV? —Sometimes.It'saninterestingprogram,butI________SportsNews. A.prefer B.want C.know D.revi...
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發表於:2020-08-06
問題詳情:Inourclass,there'sa_____thatwhenitissomebody'sbirthday,theybringinacakeforusalltoshare.A.conversation B.tradition C.discussion【回答】B知識點:單詞題型:...
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發表於:2019-02-03
問題詳情:如圖,三稜錐S-ABC中,稜SA,SB,SC兩兩垂直,且SA=SB=SC,則二面角A-BC-S大小的正切值為()A.1B.C.D.2【回答】 C 知識點:點直線平面之間的位置題型:選擇題...
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發表於:2020-06-17
問題詳情:It'sa________thatI'mtoobusytotakepartintheparty.A.pleasure Blem C.pity D.task【回答】C知識點:名詞題型:選擇題...
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發表於:2020-06-29
問題詳情:已知四稜錐S—ABCD,SA⊥平面ABCD,AB⊥BC,∠BCD+∠DAB=π,SA=2,,二面角S—BC—A的大小為.若四面體SACD的四個頂點都在同一球面上,則該球的表面積為A. B.4π C.8π D.16π【回答...
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發表於:2022-08-18
問題詳情:Ittook buildingsuppliestoconstructtheseenergy-savinghouses.Ittookbrains,too.A.otherthan B.morethan ...
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發表於:2019-05-09
問題詳情: “YOU’REtoosmall,Ginny,you’llnevermakeanOlympicteam,”saidmyfirst-everrowingcoach,waybackinthelatewinterof1978.Ihadjust41mydream.Itwassuretoobigatthatpointtos...
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發表於:2021-03-13
問題詳情:已知三稜錐S﹣ABC的所有頂點都在球O的球面上,SA⊥平面ABC,AB⊥BC且AB=BC=1,SA=,則球O的表面積是()A.4π B.π C.3π D.π【回答】A【考點】球的體積和表面積.【專題】計算題...
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發表於:2018-10-31
FromtheSAnode,electricalimpulsesspreadthroughtheheartmuscletotriggertheheartbeat.ThisisparticularlyimportantwhentheconductingtissuesbetweentheSAnodeandtheventriclesfailon...
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發表於:2020-03-22
問題詳情:Ican'tsaywhichwineisbest—it'sa(n)________ofpersonaltaste.A.affair B.event C.matter D.variety【回答】C知識點:名詞題型:選擇題...
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發表於:2021-08-12
問題詳情:ArobotnamedCosmohasbecomesix-year-oldKevinFitzgerald'saidinhisuphilleverydaybattlewithdevelopmentdifficulties. Kevinshowedthefirstsignoflearningdiffic...
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發表於:2020-10-26
問題詳情: “Thechildhasbecomepartofthemanagementoffamilylife,”saysAdeleSchwartz,researchdirectorforStarsforKids,achildren’smarket---researchfirm.“Thisisabigrolechange...
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發表於:2020-05-15
問題詳情:已知三稜錐S-ABC的所有頂點都在球O的球面上,SA⊥平面ABC,SA=2,AB=1,AC=2,∠BAC=60°,則球O的體積為() A.4π B.π C.π D.12π【回答】C知識點:空間中...
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發表於:2021-07-16
問題詳情:為研究水楊*(SA)對水稻幼苗抗寒能力的影響,研究者用0.5mmo1/L的SA噴灑水稻幼苗葉片,同時設置對照實驗,低温處理1天后測定有關數據(下表)。請回答:總葉綠素含量mg/g胞間C02含量...
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發表於:2020-11-04
問題詳情:若三稜錐S-ABC的所有頂點都在球O的球面上,SA⊥平面ABC,SA=2,AB =1,AC=2,∠BAC=60°,則球O的表面積為(A)64p (B)16p (C)12p (D)4p【回答】B知識點:空間幾何體題...
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發表於:2021-01-21
問題詳情:—HowfarisitfromBeijingtoHaikou?—It'sa______flightfromBeijingtoHaikou. A.3-hour-long B.3hourslong ...
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發表於:2019-09-05
問題詳情:.如圖,寫出字母所代表的正方形面積,SA=____,SB=____.【回答】625 144知識點:勾股定理題型:填空題...
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發表於:2019-08-24
問題詳情:三稜錐S﹣ABC中,SA⊥底面ABC,若SA=AB=BC=AC=3,則該三稜錐外接球的表面積為()A.18π B. C.21π D.42π【回答】C知識點:球面...
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發表於:2020-12-25
問題詳情:A Deed a DayIt was a busy day as usual. I was making sandwiches and balancing the phone between my shoulder and chin. The washing machine...