Passage3Decidewhichsentencewouldbestcompletethepassagelogicallyifinsertedinthecorrespondingblanks.CriticalReadingCriticalreadingappliestonon-fictionwritinginwhichtheauthorputsforthapositionorseekstomakeastatement.Criticalreadingisactivereading.Itinvolvesmorethanjustunderstandingwhatanauthorissaying.__1__Herearethethingsyoushoulddotobeacriticalreader.Considerthecontextofwhatiswritten.Youmayhereadingsomethingthatwaswrittenbyanauthorfromadifferentculturalcontextthanyours.Or,youmayhereadingsomethingwrittensometimeagoinadifferenttimecontextthanyours.__2_Questionassertionsmadebytheauthor.Don’tacceptwhatiswrittenatfacevalue.__3__Lookforfacts,examples,andstatisticsthatprovidesupport,alsolooktoseeiftheauthorhasintegratedtheworkofauthorities.Comparewhatiswrittenwithotherwrittenworkonthesubject.Looktoseethatwhatiswrittenisconsistentwithwhatothershavewrittenaboutthesubject.__4__Analyzeassumptionsmadebytheauthor.Assumptionsarewhatevertheauthormustbelieveistrueinordertomakeassertions.Inmanycases,theauthor’sassumptionsarenotdirectlystated.__5__onceyouidentifyanassumption,youmustdecidewhetherornottheassumptionisvalid.__6__.Indoingthis,becertainthatthesourcesarecredible.Forexample,Einsteinisacrediblesourceiftheauthoriswritingaboutlandmarkachievementsinphysics.Alsobecertainthatthesourcesarerelevant.Einsteinisnotarelevantsourcewhenthesubjectispoetry.Finally,iftheauthoriswritingaboutasubjectinitscurrentstate,besurethatthesourcesarecurrent.Forexample,studiesdonebyEinsteinintheearly20thcenturymaynotbeappropriateifthewriterisdiscussingthecurrentstateofknowledgeinphysics.Identifyanypossibleauthorbias.AwrittendiscussionofAmericanpoliticswilllikelylookconsiderablydifferentdependingonwhetherthewriterisaDemocratoraRepublican.Whatiswrittenmayverywellreflectabiasedposition.Youneedtotakethispossiblebiasintoaccountwhenreadingwhattheauthorhaswritten.Thatis,takewhatiswrittenwith"agrainofsalt."A.Thismeansyoumustreadcarefullyinordertoidentifyanyasassumptions.B.Beforeacceptingwhatiswritten,becertainthattheauthorprovidessufficientsupportforanyassertionsmade.C.Criticalreadinginvolvesquestioningandevaluatingwhattheauthorissaying,andformingyourownopinionsaboutwhattheauthorissaying.D.Ineithercase,youmustrecognizeandtakeintoaccountanydifferencesbetweenyourvaluesandattitudesandthoserepresentedbytheauthor.E.Ifthereareinconsistencies,carefullyevaluatethesupporttheauthorprovidesfortheinconsistencies.F.Evaluatethesourcestheauthoruses.

比较C≡C, C=C, C─C, C=C─C=C的键长次序为: C=C─C=C>C─C> C≡C >C=C|C=C─C=C>C─C>C=C>C≡C|C≡C>C=C>C─C>C=C─C=C|C─C>C=C>C=C─C=C>C≡C|C─C>C=C─C=C>C=C>C≡C

下列哪种主链骨架原子排列最能代表两个肽键?() A: Cα—N—Cα—C—Cα—N—Cα—C B: Cα—N—C—C—N—Cα C: C—N—Cα—Cα—C—N D: Cα—C—N—Cα—C—N E: Cα—Cα—C—N—Cα—Cα—C

比较C≡C(Ⅰ),C=C(Ⅱ),C─C(Ⅲ),C=C─C=C(Ⅳ)的键长次序为( )。 A: Ⅰ＞Ⅱ＞Ⅲ＞Ⅳ B: Ⅲ＞Ⅱ＞Ⅳ＞Ⅰ C: Ⅲ＞Ⅳ＞Ⅱ＞Ⅰ D: Ⅳ＞Ⅲ＞Ⅱ＞Ⅰ

不稳定的一类化合物是: C≡C|C－C|C＝C|C＝C－C＝C|C＝C＝C

NaNH4HPO4水溶液的质子条件式为 A: c(H+)+c(H2PO4-)+2 c(H3PO4)=c(OH-)+c(NH3) +c(PO43-) B: c(H+)+c(H2PO4-)+ c(H3PO4)=c(OH-)+c(NH3) +c(PO43-) C: c(H+)+c(NH3)+ c(H3PO4)=c(OH-)+c(PO43-) +c(H2PO4-) D: c(H+)+c(NH3)+ 2c(H3PO4)=c(OH-)+c(PO43-) +c(H2PO4-)

比较C≡C(I)，C=C(II)，C─C(III)，C=C─C=C(IV)的键长次序为：

在同一种固体介质中，纵波、横波、表面波三者之间的声速关系为（） A: C﹤C﹤C B: C﹤C﹤C C: C﹤C﹤C D: C﹤C﹤C

scanf(“%c%c%c“, &a,&b,&c)与scanf(“%c %c %c“ ,&a,&b,&c)的输入（ ）。

能产生共轭效应的是 A: C=C=C B: C=C C: C≡C D: C=C-C=C E: C-C