关于Diffie-Hellman算法描述正确的是()
B
暂无解析
翻译:
如今,中国正步入老龄化社会,因此独生子女一代面临着巨大的工作和生活压力。中国政府开始适当调整计划生育政策,允许一些家庭在特殊情况下生育二胎。但调查显示,很多夫妻迫于不断加重的经济压力,放弃生育二胎。因此,要从根本上解决老龄化的问题不能依靠出生率的上升,最有效的办法是建立有效的社会保障制度。
InwhatwaydoesLauraLenox-Conynghammakeherliving?
TEXTB
Whatweknowofprenataldevelopmentmakesallthisattemptmadebyamothertomoldthecharacterofherunbornchildbystudyingpoetry,art,ormathematicsduringpregnancyseemutterlyimpossible.Howcould
suchextremelycomplexinfluencespassfromthemothertothechild?Thereisnoconnectionbetweentheirnervoussystems.Eventhebloodvesselsofmotherandchilddonotjoindirectly.Anemotionalshocktothemotherwillaffectherchild,becauseitchangestheactivityofherglandsandsothechemistryherblood.Anychemicalchangeinthemother'sbloodwillaffectthechildforbetterorworse.Butwecannotseehowalooking
formathematicsorpoeticgeniuscanbedissolvedinbloodandproduceasimilarlikingorgeniusinthechild.
Inourdiscussionofinstinctswesawthattherewasreasontobelievethatwhateverweinheritmustbeof
someverysimplesortratherthananycomplicatedorverydefinitekindofbehavior.Itiscertainthatnoone
inheritsaknowledgeofmathematics.Itmaybe,however,thatchildreninheritmoreorlessofarathergeneral
abilitythatwemaycallintelligence.Ifveryintelligentchildrenbecomedeeplyinterestedinmathematics,they
willprobablymakeasuccessofthatstudy.
Asformusicalability,itmaybethatwhatisinheritedisanespeciallysensitiveear,apeculiarstructureofthe
handsorthevocalorgansconnectionsbetweennervesandmusclesthatmakeitcomparativelyeasytolearnthe
movementsamusicianmustexecute,andparticularlyvigorousemotions.Ifthesefactorsareallorganized
aroundmusic,thechildmaybecomeamusician.Thesamefactors,inothercircumstancemightbeorganized
aboutsomeothercenterofinterest.Therichemotionalequipmentmightfindexpressioninpoetry.Thecapable
fingersmightdevelopskillinsurgery.Itisnottheknowledgeofmusicthatisinherited,thennoreventheloveof
it,butacertainbodilystructurethatmakesitcomparativelyeasytoacquiremusicalknowledgeandskill.
Whetherthatabilityshallbedirectedtowardmusicorsomeotherundertakingmaybedecidedentirelybyforces
intheenvironmentinwhichachildgrowsup.
6.Whichofthefollowingstatementsisnottrue?
A.Somemotherstrytoinfluencetheirunbornchildrenbystudyingartandothersubjectsduringtheir
pregnancy.
B.Itisutterlyimpossibleforustolearnanythingaboutprenataldevelopment.
C.Thebloodvesselsofmotherandchilddonotjoindirectly.
D.Therearenoconnectionbetweenmother'snervoussystemsandherunbornchild's.
7.Amotherwillaffectherunbornbabyontheconditionthat____.
A.sheisemotionallyshocked
B.shehasagoodknowledgeofinheritance
C.shetakespartinallkindofactivities
D.shestickstostudying
8.Accordingtothepassage,achildmayinherit____.
A.everythingfromhismotherB.aknowledgeofmathematics
C.arathergeneralabilitythatwecallintelligence
D.hermother'smusicalability
9.Ifachildinheritssomethingfromhismother,suchasanespeciallysensitiveear,apeculiarstructureofthe
handsorofthevocalorgans,hewill____.
A.surelybecomemusician
B.mostlybecomeapoet
C.possiblybecomeateacher
D.becomeamusicianontheconditionthatallthesefactorsareorganizedaroundmusic
10.Whichofthefollowingisthebesttitleforthepassage?
A.RoleofInheritance.
B.AnUnbornChild.
C.Functionofinstincts.
D.InheritedTalents.
PartIIICloze
Directions:Therearetwentyblanksinthefollowingpassage.Foreachblanktherearefourchoices.ChoosetheonethatbestfitsintothepassageandthenmarksyouranswerontheAnswerSheet.
In1982,MarkThatcher,thesonofMrs.Thatcherwasreported61intheSaharaDesertwhilecompetingintheGrandPrixmotorracefromParistoDakar.Thissadnews,so62,shooktheusuallycalmandunperturbedseasonedpolitician63herbalance.Thoughshedidherbesttopretendasif64hadhappenedandmadeherpublicappearancesasusual,peoplecouldnot65tonoticethatshewasnolongertheold66primeministerwhoalwayshadeverything67control.68shehadbecomeaverysadmotherwhowasunabletorecoverfromhershock.
Oneday,whenshewastospeakataluncheonparty,areportercaughther69herguardby70upthesubjectofhermissingsonagain.Shewastotallymentally71forthequestionandlostherselfcontrol.Tearswererollingdownhereyesasshesobbinglytoldthereporterthatthere72stillnonewsofMarkandthatshewasveryworriedabouthim.Shesaidthatallthecountries73hadpromisedtodotheirbesttohelpherfindherson.74thatshebrokedowncompletelyandsobbedsilentlyforquiteawhile.Graduallyshe75downandstartedtospeakas76.itwasaverymovingscenewhich77anewsideofMrs.Thatcher’scharacterthepublicdonotusuallysee,78peoplebegantotalkabouttheIronWoman’smaternallove,asentimentthatis79toallhumankind.
LaterMarkreturned80andsoundtohismother’sside,good-humoredandallsmilesasusual,asifnothingunusualhadeverhappened.TheIronWoman,however,brokedownagainaswassobbingforthesecondtime.
61.A.missingB.missedC.wantingD.wanted
62.A.expectedB.expectingC.unexpectedD.unexpecting
63.A.withB.onC.outD.off
64.A.somethingB.anythingC.nothingD.everything
65.A.missB.failC.pretendD.expect
66.A.reassuredB.self-assuredC.assuringD.self-assuring
67.A.forB.beneathC.belowD.under
68.A.InsteadB.howeverC.ThereforeD.So
69.A.intoB.outofC.onD.off
70.A.puttingB.bringingC.takingD.giving
71.A.readyB.preparedC.unpreparedD.unexpected
72.A.wasB.wereC.shouldbeD.wouldbe
73.A.concerningB.concernedC.worryingD.worried
74.A.AtB.BeforeC.AfterD.With
75.A.satB.brokeC.calmedD.became
76.A.plannedB.planningC.plansD.aplan
77.A.explainedB.exposedC.excludedD.exclaimed
78.A.howeverB.insteadC.soD.but
79.A.universalB.uniqueC.singleD.strange
80.A.safeB.safelyC.sightD.hearing