大家好，今天来为大家分享英语a级真题及答案的一些知识点，和英语a级真题及答案解析的问题解析，大家要是都明白，那么可以忽略，如果不太清楚的话可以看看本篇文章，相信很大概率可以解决您的问题，接下来我们就一起来看看吧！
谁有大学英语a级考试的历年真题,请给我一份,十分感谢
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2017年六月英语A级真题以及答案
选择题
Hedoesn’tlikemeat.
A．alotB．alittleC．atall
答案：C
2.—Whatareyouin?
—I’minThree.
A．class,classb．class,ClassC．Class,Class
答案：B
填空
Wemustbrushour（牙齿）beforegoingtobed.
答案：teeth
2.Don't_______（借）moneytoAndyanymore!
答案：lend
职称英语考试真题及答案理工类A级概括大意
第3部分：概括大意与完成句子(第23—30题，每题1分，共8分)
下面的短文后有2项测试任务：(1)第23——26题要求从所给的6个选项中为第2——5段每段选择1个最佳标题;(2)第27——30题要求从所给的6个选项中为每个句子确定1个最佳选项。
FirstImage-recognitionSoftware
1.DartmouthresearchersandtheircolleagueshavecreatedanartificialintelligencesoftwarethatusesphotostolocatedocumentsontheInternetwithfargreateraccuracythaneverbefore.
2.Thenewsystem,whichwastestedonphotosandisnowbeingappliedtovideos,showsforthefirsttimethatamachinelearningalgorithm(运算法则)forimagerecognitionandretrievalisaccurateandefficientenoughtoimprovelarge-scaledocumentsearchesonline.Thesystemusespixel(像素)datainimagesandpotentiallyvideo—ratherthanjusttext—tolocatedocuments.Itlearnstorecognizethepixelsassociatedwithasearchphrasebystudyingtheresultsfromtext-basedimagesearchengines.Theknowledgegleaned(收集)fromthoseresultscanthenbeappliedtootherphotoswithouttagsorcaptions(图片说明),makingformoreaccuratedocumentsearchresults.
3."Overthelast30years,"saysAssociateProfessorLorenzoTorresani,aco-authorofthestudy,"theWebhasevolvedfromasmallcollectionofmostlytextdocumentstoamodern,massive,fast-growingmultimediadataset,wherenearlyeverypageincludesmultiplepicturesorvideos.WhenapersonlooksataWebpage,heimmediatelygetsthegist(主旨)ofitbylookingatthepicturesinit.Yet,surprisingly,allexistingpopularsearchengines,suchasGoogleorBing,stripawaytheinformationcontainedinthephotosanduseexclusivelythetextofWebpagestoperformthedocumentretrieval.Ourstudyisthefirsttoshowthatmodernmachinevisionsystemsareaccurateandefficientenoughtomakeeffectiveuseoftheinformationcontainedinimagepixelstoimprovedocumentsearch."
4.Theresearchersdesignedandtestedamachinevisionsystem—atypeofartificialintelligencethatallowscomputerstolearnwithoutbeingexplicitlyprogrammed—thatextractssemantic(语义的)informationfromthepixelsofphotosinWebpages.ThisinformationisusedtoenrichthedescriptionoftheHTMLpageusedbysearchenginesfordocumentretrieval.Theresearcherstestedtheirapproachusingmorethan600searchqueries(查询)onadatabaseof50millionWebpages.Theyselectedthetext-retrievalsearchenginewiththebestperformanceandmodifiedittomakeuseoftheadditionalsemanticinformationextractedbytheirmethodfromthepicturesoftheWebpages.Theyfoundthatthisproduceda30percentimprovementinprecisionovertheoriginalsearchenginepurelybasedontext.
23.Paragraph1____
24.Paragraph2____
25.Paragraph3____
26.Paragraph4____
A.Functionofthenewsystem
B.Improvementindocumentretrieval
C.Publicationofthenewdiscovery
D.Problemsoftheexistingsearchengines
E.Popularityofthenewsystem
F.Artificialintelligencesoftwarecreated
27.Thenewsystemdoesdocumentretrievalby____.
28.Thenewsystemisexpectedtoimproveprecisionin____.
29.Whenperformingdocumentretrievaltheexistingsearchenginesignore____
30.Thenewsystemwasfoundmoreeffectiveindocumentsearchthanthe____
A.usingphotos
B.descriptionoftheHTMLpage
C.currentpopularsearchengines
D.documentsearch
E.informationinimages
F.machinevisionsystems
参考答案：第3部分：概括大意与完成句子(第23—30题，每题1分，共8分)
23-26.FADB
27-30.ADEC
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