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假设用频率估计概率，且所有鸡冠花生长情况相互独立(1)从第1组抽取的20株鸡冠花样本中随机抽取2株，求至少有1株鸡冠花的株高增量在(7,10]内的概率；(2)分别从第1组，第2组，第3组的鸡冠花中各随机抽取1株，记这3株鸡冠花中恰有X株的株高增量在(7,10]内，求X的分布列和数学期望E(X);(3)用“.=1”表示第k组鸡冠花的株高增量在(4,10]内，“5.=0”表示第k组鸡冠花的株高增量在(10,16]内，k=1,2,3.比较方差D(5),D(2),D(E3)的大小，并说明理由.18.(17分)已知点B(-1,0),圆C:(x-1)2+y2=12,动点A满足|AB|·|AC(1十cos∠BAC)=4.记A的轨迹为曲线E.(1)求E的方程：(2)过点C作倾斜角互补的两条直线1,1：，设直线的倾斜角为0,0∈(0，)，直线L4与曲线E交于M,N两点，直线L2与圆C交于P,Q两点，当四边形PMQN的面积为号时，求a219.(17分)定义：函数f(x)满足对于任意不同的x1,x2∈[a,b],都有|f(x1)一f(x2)

听第5段对话，回答第10、11小题。④(B)10.When does Mike's hometown celebrate the听力材料Monkey Festival?听M:Is the bag on the chair yours,Linda?力A.On the last Saturday of May.W:Yes,it is.What about these crayons,Tom?B.On the last Sunday of November.M:They're not mine.They are Tony's.C.On the last Saturday of December.W:Who is Tony?Your brother?(C )11.What do they do at the festival?M:No,he is my friend.He likes drawing veryA.They catch monkeys.much.B.They play with monkeys.C.They give food to monkeys.g听力材料W:Are there any interesting festivals in your第三节听长对话听hometown,Mike?听M:Yes.We celebrate the Monkey Festival on thelast Sunday of November.The Summer FestivalWhatIt's a festival of food and(16)artW:What activities do you have at the festival?How longIt lasts for (17)seven days.M:We put lots of fruit and vegetables on largeWhereIn a(18)parktables for monkeys.Best way to get thereBy(19)busW:Sounds fun.FoodPaxman(20)pies are delicious听力材料W:Did you do anything fun last weekend?听第6段对话，回答第12、13小题。M:Yes,I went to the Summer Festival.(C)12.What is Joe going to buy his mom on听W:Is it a music festival?M:No,it's a food and art festival.It lasts for seven days.力Mother's Day?W:Really?That sounds interesting.Where is it?A.A card.B.A coat.C.Some flowers.M:In the Country Park.(B)13.Where is the girl going to take her mom?W:Good!I'd like to go thereM:Well,you'd better take a bus there.It's hard to findA.To a park.parking for your car.B.To a Chinese restaurant.W:OK.C.To a flower show.M:And when you get there,please try Paxman pies.They havemeat pies,fruit pies,vegetable pies...and they're delicious!gW:Sure,I will.Thanks a lot.听力材料W:Hi,Joe.Are you going to do anything special(B)21.The Spring Festival ismost听for your mom on Mother's Day?选important festival in China.M:Yes,I'm going to buy my mom some flowersA.aB.the C./What about you?W:I'm going to make her a card,and then take(B)22.Christmas Eve,people singher to her favorite Chinese restaurant for空Christmas songs and give giftseachdinner.other.M:That sounds nice.By the way,where is herA.In;forB.On;toC.On;forfavorite restaurant?W:It's across from the City Park on King's Street.(A)23.-Whichdoes your little sister like?听第7段对话，回答第14、15小题。(A)14.Whose bag is on the chair?选择-Children's Day.A.festivalB.seasonC.subject力A.Linda's.B.Tony's.(A )24.My schoolbag is heavy because it'sC.Tom's.books.(C )15.What does Tony like doing?空A.fullB.carefulC.lightA.Dancing.B.Singing.(C)25.The classroom is so hot.PleasetheC.Drawing.windows.A.closeB.washC.open

26.What can be inferred about the author fromparagraph 3?"Egyptian antiquities belong to allEgyptians,.”she writes.“We all have the阅She became less ambitious.B.She seldom doubted her plan.C.She cared less about clothing.阅读right to know in detail what is happening toour heritage and to express our viewsthrough societal and scientific dialogue."理D.She was proud of her success.27.Why does the author choose to keep the jacketin the end?解A.She thinks it's still in good condition.B.She has no better way to deal with it.C.She finds it doesn't take up much space.She treasures the memories it carries.gC28.What can we learn about the Pyramid of阅The Pyramid of Menkaure is the smallest of阅Menkaure?Giza's three pyramids.Built around 2500 BC,theA.It was completely damaged.200-foot-tall structure was dedicated to thepharaoh(法老)of the same name who ruled duringIt was named after a pharaoh.理ancient Egypt's fourth dynasty.Unlike most other理C.It was the last pyramid built in Egypt.pyramids in Egypt,part of Menkaure's exteriorwas once covered in layers of granite(花岗岩)D.It was all covered with granite on theoutside.blocks.The pyramid has been "gradually damagedby erosion and human destruction"in the 4,500years since its construction.In January 2024,Egypt's Ministry of Tourismand Antiquities announced that a team of Egyptian29.What does Hanna say about the granite阅and Japanese archaeologists would study,documentblocks?and finally rebuild the pyramid's granite exterior.They were not originally part of theMany onlookers,however,do not share the读pyramid.government's enthusiasm.Monica Hanna,an archaeologist,shared aB.They were intended for the pyramid butmisplaced.解statement on behalf of a group of archaeologistswho call the project "entirely unscientific".They解C.They should be reused to show theirargue the work has moved much too quickly,historical value.skipping the vital research and documentationD.They were used to replace damaged blocksphases that should come before physicalon the pyramid.construction.Workers will use granite blocks that have longrested around the pyramid's base.Egyptian30.Why does Cooney oppose restoring theofficials say they are simply reinstalling them.Butpyramid?Hanna says these blocks were never actually placed阅She worries about losing valuable historical读on the structure.Instead,they had been brought indata.from the city of Aswan and left at the base ofB.She fears it would destroy the pyramid'sMenkaure's pyramid,awaiting placement,when理appearance解construction stopped,probably due to thepharaoh's death.C.She doesn't want the project to attractKathlyn Cooney,an archaeologist at theunwanted attention.University of California,thinks the structureD.She thinks it would disrupt the natural agingshould be conserved,not restored.The pyramid'sof the pyramid.unfinished granite blocks "teach us about hiskingship and the political affairs of the time,"she31.What does Hanna call for in the lastsays."By putting blocks back,we will destroy allparagraph?阅that data.”As Hanna writes in the archaeologists'statement,阅A.Stricter government control over the project.any attempt to use the blocks at the pyramid's baseB.Wider international involvement in the理"would be disrespectful to the work of the ancientproject.Egyptians and would affect the integrity andC.More respect for the work of ancientauthenticity(真实性)of the monument,.”解Egyptians.She adds that Egypt's people have a right toGreater public participation in theirtheir country's history and that the pyramids don'theritage decisions.belong only to archaeologists or Egypt'sgovernment agencies.

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