18、下列不属于随园菜特点的是（）

18、宫廷菜北味以长安、洛阳、开封、北京（）代表。

18、工作的（）是在在不影响其紧后工作最早开始时间的前提下，本工作可以利用的机动时间。

学前教育的基本活动是（）

18.BeaucoupdeChinoisn’aimentpas__________café.

张三期末考试数学得了100分，语文得了80分，则张三两科的平均分是（）

数学中的平面是有限图形

小明期末数学、语文、英语、体育成绩分别为98分、95分、96分、99分，则小明的平均成绩是97，方差是1。

过程考核二（数列）：根据数列3，8，13，x，23，28题目中x为（）

18、企业出现严重财务困难时，即表明企业不能持续经营。（　）

下列关于磁感线的说法中，正确的是（）

设O为坐标原点，若点A的坐标为（-1，3），则向量OA的坐标是()。

求直线x+2y+1=0与直线x-y-2=0的交点坐标是（）

18.Hejust_______whenheheardthatjoke!

ProfessorAshokGoelofGeorgiaTechdevelopedanartificiallyintelligentteachingassistanttohelphandletheenormousnumberofstudentquestionsintheonlineclass,Knowledge-BasedArtificialIntelligence.ThisonlinecourseisacorerequirementofGeorgiaTech’sonlineMasterofScienceinComputerScienceprogram.ProfessorGoelalreadyhadeightteachingassistants,butthatwasn’tenoughtodealwiththeoverwhelmingnumberofdailyquestionsfromstudents.Manystudentsdropoutofonlinecoursesbecauseofthelackofteachingsupport.Whenstudentsfeelisolatedorconfusedandreachoutwithquestionsthatgounanswered,theirmotivationtocontinuebeginstofade.ProfessorGoeldecidedtodosomethingtoremedythissituationandhissolutionwastocreateavirtualassistantnamedJillWatson,whichisbasedontheIBMWatsonplatform.GoelandhisteamdevelopedseveralversionsofJillWatsonbeforereleasinghertotheonlineforums.Atfirst,thevirtualassistantwasn’ttoogreat.ButGoelandhisteamsourcedtheonlinediscussionforumtofindallthe40,000questionsthathadeverbeenaskedsincetheclasswaslaunched.ThentheybegantofeedJillwiththequestionsandanswers.Aftersomeadjustmentsandsufficienttime,Jillwasabletoanswerthestudents’questionscorrectly97%ofthetime.Thevirtualassistantbecamesoadvancedandrealisticthatthestudentsdidn’tknowshewasacomputer.Thestudents,whowerestudyingartificialintelligence,wereinteractingwiththevirtualassistantandcouldn’ttellitapartfromarealhumanbeing.Goeldidn’tinformthemaboutJill’strueidentityuntilApril26.Thestudentswereactuallyverypositiveabouttheexperience.ThegoalofProfessorGoel’svirtualassistantnextyearistotakeoveranswering40%ofallthequestionsposedbystudentsontheonlineforum.ThenameJillWatsonwill,ofcourse,changetosomethingelsenextsemester.ProfessorGoelhasamuchrosieroutlookonthefutureofartificialintelligencethan,say,ElonMusk,StephenHawking,BillGatesorSteveWozniak.18.WhatdowelearnaboutJillWatson?