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2023-2024学年吉林省高一年级11月期中考试联考数学考试卷试卷答案
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omputershavebeenplayingandwinningchmenGrandmasterssethe198medicineswonderifthechess-playingrobothadaflashofrecognition:somerobotsarehelpingtocontrolairplanedsofothers.rosceansndspaceshipsnhsrsheromdrerButthsooavior,whichsckplayingchesshilethe7-yearontheotherehdocointerestsofartistorcomputerengineerwhocoudmakethfdatesDVDwiththenextupdateiesinotherMaybethat'swhentherobotcoudn'keepitstsefaid.32.Whatdoethehhnkrinheingboy?D.Itisunbelievable.oisapplyingA.Itisintentional.B.Itisaccidental.C.Itisunforgivable.zeesintheir33.WhoistoblamefortheattackaccordingtoSergeySmagin?D.Theboy.needtostillA.Theinventor.B.Therobot.C.TheprogramD.Game.”34.Whatdoestheunderlinedword"ambush"inparagraph3mean?B.Attack.C.Defeat.A.Change.35.Whatcanbeinferredabouttherobotfromthelastparagraph?B.Ithasplayedandwon.A.Ithasbeenoutofdate.D.Itmightdislikeitsrole.C.Itfailedtoflyairplanes.根据短文内容,从短文后的选项中选出能填入空白处的最佳选项
选项中有两项为多余选第二节(共5小题:每小题3分,满分15分)项
Managersacrossnearlyeveryindustrybelievedistractionsoarsasthetemperaturerises.36Morethananything,ourenvironmentimpactsourproductivity37Thinkaboutyourmorningcommute:It'sstickyandhumidevenat8a.m.andbythetimeyougetintoyourair-conditionedoffice,you'realreadyexhausted.Heatcausesmanypeopletofeellethargic,makingitmuchmoredifficulttofocusonthatmeetingyouhavefirstthing.on.AbsencesnaturallyimpactproductivitySure,peopletravelanddootherfunactivitiesyear-round,butmanypeoplehavemoregoingontheMoscowbetweenMayandSeptemberthantheydoanyotherperiod.38"Evenifyou'renottakinganexcitinghavebeenvacation,perhapsyourcoworkersareoutoftheofficealot,"Schinkesays."Thiscanimpacttheproductivitycalculatingofthewholeteam.”ayingrobot39.Thesunwon'tsetuntilpast8p.m.,soit'snaturaltowanttosoakupeverymomentafteryouemovedtheescapeyouroverlyair-conditionedoffice.Duringthesemonths,you'refarmorelikelytostayuplater,meaningyoufeelsleepywhenit'stimehannelthattoclockin.It'snottoodifferentthanthedeclineinproductivitythatfollowstheSuperBowlorSttainsafetyPatrick'sDay.40.grammadeA.HerearetherealreasonsB.Temperatureispartofthereasongton,readC.Herearesometipsonhowtodealwithitoy'shandD.Yoursleep(orlackofsleep)canbeafactorebetweenE.MorevacationtimemeanslessprogressctionwithF.Thisisreallywhyyou'relessproductiveinthesummerG.Butinsummer,itcouldbeamorefrequentoccurrence高三英语第6页(共8页)
分析由约束条件作出可行域,数形结合得到最优解,联立方程组求得最优解的坐标,代入目标函数得答案
解答解:由约束条件$\left\{{\begin{array}{l}{5x+3y≤15}\\{y≤x+1{\;}^{\;}}\\{x-5y≤3}\end{array}}\right.$,得可行域 …(6分)
交点坐标A(-2,-1),…(7分)
由z=3x+5y得$y=-\frac{3}{5}x+\frac{z}{5}$…8
当x=-2,y=-1时,zmin=-11,
当$x=\frac{3}{2},y=\frac{5}{2}$时,zmax=17…(10分)
点评本题考查线性规划的解得应用,考查计算能力,是中档题.