期末测试题(B卷)

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英语(专升本)B卷 期末考试试题及参考答案

英语(专升本)B卷 期末考试试题及参考答案
A. scanned B. startled C. smashed D. stretched
4. I didn’t see Laura at the party last night. Do you know _______?
A. what happenedB. why shenotcome
C. when would she arrive D. where she has been
2. —Excuse me, where is Mr Brown’s office?
—Sorry, I don’t know. I ______ here for only a few days.
A. work B. worked C. have worked D. will work
3. It was such wonderful weather. He ______ himself out on the grass.
5. Many people agree that the sudden death of a relative gives them a new ______ on life.
A. prospect B. perspective C. preference D. performance
6. You won’t feel happy at school ______ you get on well with your classmates.
A. decent B. recent C. decade D. solemn
13. In some places women are expected to earn money ____ men work at home and raise their children.

2014年计量经济学期末试题(B卷)

2014年计量经济学期末试题(B卷)

学院 经济与金融考试日期年 月 日专业班号姓 名学号 期中 期末匚一 单项选择题(每题1分,共15分)1、下面哪个假定保证了线性模型 y = X + u 的OLS 估计量的无偏性。

()A. X 与u 不相关。

B. u 是同方差的。

C.u 无序列相关。

D .矩阵X 是满秩的。

2、 下列对于自相关问题的表述,哪个是不正确的。

()A. Durbin-Watson 检验只用于检验一阶自相关。

B. BG( Breusch-Godfrey )统计量只用于检验高阶自相关。

C •一阶自相关系数可以通过P =1- DW/2进行估计。

D. DW 检验不适用于模型中存在被解释变量的滞后项作解释变量的情形 3、 设k 为回归模型中的参数个数,n 为样本容量。

则对多元线性回归方程进 行显著性检验时,所用的F 统计量可表示为()A ESS (n - k)BR 2/k.RSS (k -1)• (1 -R 2) (n - k-1)C R 2 (n-k)D ESS(k -1) .(1-R 2)(k-1). RSS (n-k)4、 在模型Y t 二訂「2X 2t 「3X 3t 」的回归分析结果报告中,有 F = 263489, F 的p 值=0.000000,则表明() A 、解释变量X 2t 对Y t 的影响是显著的 B 解释变量X 3t 对Y t 的影响是显著的C 解释变量X 2t 和X 3t 对Y t 的联合影响是显著的D 解释变量X 2t 和X 3t 对Y t 的影响是均不显著西安交通大学考试题课程计量经济学(B 卷)C. Y t- Y^和X t - X tj,D. Y t- 0.05 和X t- 0.05 Xg10、在检验异方差的方法中,不正确的是()A. Goldfeld-Qua ndt 方法B. ARCH 检验法C. White检验法D. DW检验法11、考虑下面回归模型,D j是虚拟变量,其中:W m为兼职工薪(美元/小时);W0为主业工薪(美元/小时);Age为年龄;Race表示种族(若是白人取值为0,非白人取值为1); Reg表示被访者所在区域(若被访者是西部地区居民,取值为1;若是非西部居民,取值为0。

2021年广州大学计算机应用技术专业《计算机组成原理》科目期末试卷B(有答案)

2021年广州大学计算机应用技术专业《计算机组成原理》科目期末试卷B(有答案)

2021年广州大学计算机应用技术专业《计算机组成原理》科目期末试卷B(有答案)一、选择题1、下列关于页式虚拟存储器的论述,正确的是()。

A.根据程序的模块性,确定页面大小B.可以将程序放置在页面内的任意位置C.可以从逻辑上极大地扩充内存容量,并且使内存分配方便、利用率高D.将正在运行的程序全部装入内存2、某计算机使用4体交叉编址存储器,假定在存储器总线上出现的主存地址(十进制)序列为8005,8006,8007,8008,8001,8002,8003,8004,8000,则可能发生访存冲突的地址对是()。

A.8004和8008B.8002和8007C.8001和8008D.8000和80043、对于相同位数(设为N位,且各包含1位符号位)的二进制补码小数和十进制小数,(二进制小数所表示的数的个数)/(十进制小数所能表示的数的个数)为()。

A.(0.2)NB. (0.2)N-1C. (0.02)ND. (0.02)N-14、float 型数据常用IEEE754单精度浮点格式表示。

假设两个float型变量x和y分别存放在32位寄存器fl和f2中,若(fl)=CC900000H,(f2)=BOC00000H,则x和y 之间的关系为()。

A.x<y且符号相同B.x<y符号不同C.x>y且符号相同D.x>y且符号不同5、在C语言程序中,以下程序段最终的f值为()。

Float f=2.5+1e10;f=f-1e10;A.2.5B.250C.0D.3.56、为了对n个设备使用总线的请求进行仲裁,如果使用独立请求方式,则需要()根控制线。

A.nB.log2n+2C.2nD.37、在异步通信方式中,一个总线传输周期的过程是()。

A.先传送数据,再传送地址B.先传送地址,再传送数据C.只传输数据D.无法确定8、CPU中不包括()。

A.操作码译码器B.指令寄存器C.地址译码器D通用寄存器9、假定机器M的时钟频率为200MHz,程序P在机器M上的执行时间为12s。

南京大学2021年《大学英语》期末试题B卷及答案

南京大学2021年《大学英语》期末试题B卷及答案

一. 语法(共10题,共40分)1. —I'm sorry to keep you waiting.—Oh, not at all. I ______ here only a few minutes. (4分)A.have beenB.had beenC.wasD.will be★标准答案:A2. In come parts of the world, tea ________ with milk and sugar. (4分)A.is servedB.is servingC.servesD.served★标准答案:A3. —Is ______ here?—No, Bob and Tim have asked for leave. (4分)A.everybodyB.anybodyC.somebodyD.nobody★标准答案:A4. It was ________ many centuries later that the ancient Greeks placed the science of map-making on a sound footing. (4分)A.notB.untilC.not untilD.until not★标准答案:C5. It`s hard ________ a job . (4分)A.to look forB.to findC.to find outD.to look at★标准答案:B6. It’s reported that by the end of last month the sale of the company ______ by 10% (4分)A.had risenB.has risenC.had been risingD.has been rising★标准答案:A7. It's nearly seven o'clock. Jack ________ be here at any moment. (4分)A.shouldB.mustC.needD.can★标准答案:A8. Jane wasn’s in when Jack came,was she? ________. (4分)A.No,she wasn’tB.No,she wasC.Yes,she wasD.Yes,she wasn’s★标准答案:A9. Jim is an American,________ he can speak very good Chinese.(4分)A.ifB.soC.butD.because★标准答案:C10. -l had a really good weekend at my uncle's. -_________. (4分)A.Oh. I'm glad to hear thatB.Oh. that's very nice of youC.I,m going to the post officeD.It's a pleasure★标准答案:A二. 词汇(共7题,共28分)1. There is not enough _____________ in the corner to put the table. (4分)A.placeB.roomC.floorD.ground★标准答案:B2. These coats are different _______size.(4分)A.fromB.ofC.toD.in★标准答案:D3. They were all very tired,but ________ of them would stop to take a rest. (4分)A.noneB.anyC.someD.neither★标准答案:A4. This book _______ many subjects. (4分)A.embracesB.exceptC.balanceD.notice★标准答案:A5. This morning I went to work in such a hurry that _____ the key to my office at home. (4分)A.forgotB.leftC.missedD.lost★标准答案:B6. We have to ask them to ______ talking in order that all people present could hear us clearly. (4分)A.decreaseB.quitC.continueD.keep★标准答案:B。

《现代交换原理》期末考试试题和答案(免费)

《现代交换原理》期末考试试题和答案(免费)

《现代交换原理》期末考试试题和答案(免费)《现代交换原理》期末考试试题(B卷)⼀、填空(共20分,每空1分)1.设S接线器有4条输⼊复⽤线和4条输出复⽤线,复⽤线的复⽤度为512。

则该S接线器的控制存贮器有 4 组,每组控制存储器的存储单元数有512 个。

2.T接线器采⽤输出控制⽅式时,如果要将T接线器的输⼊复⽤线时隙25的内容A交换到输出复⽤线的时隙45,则A应写⼊话⾳存储器的25 号单元,控制存储器的45号单元的内容是25 。

控制存储器的内容在呼叫建⽴时由计算机控制写⼊。

3.7号信令系统硬件包括信令数据链路接⼝、交换⽹络、信令终端电路和完成7号信令系统第3、4级及⾼层功能的软件所在的宿主处理机。

4.电话机发出的DTMF 可以通过程控交换机的数字交换⽹络,从⽽实现某些业务所要求的⼆次拨号。

5.我国⽬前的两级长途⽹由DC1 和DC2 两级组成。

6.程控交换机的运⾏软件是指存放在交换机处理机系统中,对交换机的各种业务进⾏处理的程序和数据的集合。

7.基于容量分担的分散控制⽅式的交换机主要由交换模块通信模块、和管理模块三部分组成。

8.在程控交换机中主要的中断类型有故障中断、时钟中断、I/0中断三种。

9.按照程控软件中数据存在的时间特性,可分成___暂时性数据_________和半固定性数据,后者⼜包括___局数据_____和_⽤户数据________两⼤类。

10.通过多个T单元的复接,可以扩展T接线器的容量。

利⽤16 个256×256的T 接线器可以得到⼀个1024×1024的T接线器。

⼆.单项选择题(在每⼩题的四个备选答案中,选出⼀个正确的答案,并将其号码填在题后的括号内。

(10分,每⼩题1分)1. 局间中继采⽤PCM传输时,采⽤数字型线路信令。

每个话路的线路信令每秒传送( D )次。

A 8000B 4000C 125D 5002. 我国的国内7号信令⽹,信令点的编码计划是(D )位⼆进制数。

小学三年级上册B卷英语第3单元期末试卷(答案和解释)

小学三年级上册B卷英语第3单元期末试卷(答案和解释)

小学三年级上册英语第3单元期末试卷(答案和解释)英语试题一、综合题(本题有50小题,每小题2分,共100分.每小题不选、错误,均不给分)1.Which month comes after March?A. FebruaryB. AprilC. MayD. June2.Which of these is a fruit?A. carrotB. potatoC. appleD. broccoli3.Which of these is a pet animal?A. LionB. CatC. ElephantD. Tiger4.Which one is a transportation vehicle?A. BusB. KnifeC. SpoonD. Plate5.Which of the following is a season?A. WinterB. BananaC. KnifeD. Chair6.Which one is a body part?A. HeadB. ChairC. TableD. Spoon7.What is the correct way to greet someone in the morning?A. Good nightB. Good morningC. Good afternoonD. Good evening8.Which of the following is a tool?A. HammerB. SpoonC. PlateD. Chair9.What do you use to brush your teeth?A. ToothbrushB. KnifeC. ForkD. Comb10.Which of these is a type of tree?A. PineB. AppleC. PearD. Banana11.Which of these is a place where you read books?A. LibraryB. SchoolC. ParkD. Store12.Which of these animals lives in the water?A. DogB. ElephantC. DolphinD. Tiger13.Which of the following is a means of transportation?A. BicycleB. SpoonC. PlateD. Car14.Which of these is a day of the week?A. TuesdayB. MarchC. WinterD. Saturday15.Which of these is an animal with a trunk?A. ElephantB. GiraffeC. DogD. Lion16.How many legs do most dogs have?A. TwoB. FourC. SixD. Eight17.This afternoon, I ______ (go) to the park with my friends. We ______ (play) basketball for an hour, and then we ______ (sit) under a big tree to rest. My friend Lucy ______ (bring) some snacks, and we ______ (eat) them together. It ______ (be) a fun afternoon.18.Which one is a color?A. DogB. TableC. BlueD. Chair19.Which one is a color?A. YellowB. SpoonC. PlateD. Knife20.Which one is a day of the week?A. JanuaryB. TuesdayC. SummerD. Christmas21.Which one is a shape?A. TriangleB. PlateC. SpoonD. Chair22.I love to go to the __ in the summer. It’s a very __ place. We can swim in the water, play __, and eat __. I also like to build sandcastles on the __. After a long day at the beach, we go to a nearby __ to buy some ice cream.23.This morning, I _______ (wake) up early and _______ (eat) a big breakfast. After that, I _______ (go) to the park to meet my friends. We _______ (play) basketball for an hour, and we _______ (have) a lot of fun.24.What do you use to write on a board?A. PenB. MarkerC. EraserD. Paper25.You are walking in a park on a sunny day. You see a group of people having a picnic. They are eating sandwiches, drinking juice, and playing games. What are they doing?A. WalkingB. SwimmingC. PlayingD. Having a picnic26.Which one is a color?A. appleB. bananaC. greenD. cat27.What is the opposite of hot?A. coldB. warmC. sunnyD. rainy28.We ______ (go) to the park every weekend to play soccer. Last Sunday, we ______ (decide) to try something new, so we ______ (play) basketball instead. It ______ (be) so much fun! After the game, we ______ (sit) under a tree and ______ (eat) some sandwiches. We all ______ (enjoy) the day.29.Which one is used to brush teeth?A. ToothbrushB. KnifeC. SpoonD. Plate30.What is the opposite of "cold"?A. HotB. CoolC. WarmD. Soft31.Which of these is a vegetable?A. TomatoB. CarrotC. BananaD. Apple32.What do we use to eat a salad?A. KnifeB. ForkC. SpoonD. Plate33.I usually _______ (go) to the park on weekends. Last Saturday, I _______ (decide) to visit the zoo instead. I _______ (see) many animals, like elephants, tigers, andmonkeys. After the visit, I _______ (buy) a souvenir and _______ (take) a photo of the animals. It _______ (be) a fun day.34.My best friend, Amy, and I are going to the __ tomorrow. We will see many __ like tigers, lions, and __. Amy loves animals, so she is very excited. After the visit, we plan to go to the __ to eat some __ and have fun.35.Which of these is a vegetable?A. orangeB. bananaC. potatoD. apple36.What color is an apple?A. BlueB. RedC. GreenD. Yellowst weekend, I went on a trip with my family. We went to a beautiful __. There were tall trees, colorful flowers, and birds singing in the trees. We walked along a path and saw many interesting animals. My brother took lots of pictures with his __. After walking for a while, we had a picnic near the river.38.Which one is used for writing?A. BookB. PencilC. PlateD. Bottle39.Which of these is a piece of furniture?A. ChairB. CarC. PenD. Book40.Which of these is a type of fruit?A. CarrotB. TomatoC. PotatoD. Lettuce41.Which one is a season?A. JanuaryB. TuesdayC. springD. cloud42.Which one is a type of animal?A. PlantB. BirdC. RockD. Water43.What do we use to write?A. PenB. SpoonC. ChairD. Fork44.Which of these is used for writing?A. BookB. PaperC. PencilD. Phone45.Which of these is a shape?A. CircleB. DogC. CatD. Bird46.I __ to school every day.A. goesB. goC. wentD. going47.Which one is a kind of fruit?A. AppleB. CarrotC. PotatoD. Onion48.What is the opposite of "hard"?A. SoftB. BigC. SlowD. Tall49.Which of the following is used to cut food?A. ForkB. KnifeC. SpoonD. Plate50.Which one is a body part?A. MouthB. PlateC. SpoonD. Chair (答案及解释)。

2022-2023学年山东省济南市四年级下册数学期末检测试卷(B卷)含解析

2022-2023学年山东省济南市四年级下册数学期末检测试卷(B卷)含解析

2022-2023学年山东省济南市四年级下册数学期末检测试卷(B卷)一、我会填。

(每空1分,共21分)1.(2分)2021年5月11日,第七次全国人口普查结果公布,全国人口共1411780000人,横线上的数改写成用“亿”作单位的数是亿,精确到十分位约是亿。

2.(6分)在括号里填上合适的数。

(1)65公顷=平方米(2)5千米80米﹣3千米50米=千米(3)3.02吨=吨千克(4)0.04=43.(2分)如图是由个小正方体搭成的,在此基础上再添一个小正方体,使得从上面看到的形状不变,有种不同的摆法。

4.(1分)在一个三角形中,最小的一个内角是47°,这个三角形是三角形.5.(2分)5.35比少1.86;比2.88吨多1.2吨。

6.(1分)把12+3=15,15×2=30,810÷30=27合并成一个综合算式。

7.(1分)用0、5、7、9这四个数字和小数点,组成一个0都不读出来的最大两位小数是。

8.(1分)皮皮鲁由于粗心大意把“5×(24+a)”错算成“5×24+a”。

结果比正确答案少56,正确答案是。

9.(1分)将一张正方形白纸连续对折3次,然后用针在上面扎出“人”字,展开后共可得到个“人”字。

10.(1分)如图中,左边是一副三角尺中的一块,右边是一个等腰三角形,那么∠3=度。

11.(2分)一两位小数保留一位小数约为8.0,这个两位小数最大是,最小是.12.(1分)小明参加创意比赛,4轮小组赛以后的平均分是86分,5轮小组赛以后的平均分是88分,他第五轮得了分。

二、我会选。

(每小题只有一个正确答案)(每小题2分,共12分)13.(2分)一道减法算式中,如果被减数减少25,要使差不变,减数应该()A.增加25B.减少25C.减少50D.不变14.(2分)在校运动会跳远比赛中,乐乐跳了5.6米,明明比乐乐远0.6米,刘静比明明近0.15米。

下列三幅图中,正确表示题目信息的是()A.B.C.D.15.(2分)下列说法中正确的是()①去掉小数点后面的零,小数的大小不变。

小学三年级下册B卷英语第2单元期末试卷(答案和解释)

小学三年级下册B卷英语第2单元期末试卷(答案和解释)

小学三年级下册英语第2单元期末试卷(答案和解释)英语试题一、综合题(本题有50小题,每小题2分,共100分.每小题不选、错误,均不给分)1.Which of these animals can swim?A. DogB. CatC. FishD. Horse2.What do we wear in the winter?A. TshirtB. ShortsC. SweaterD. Sandals3.I ______ (not/like) to eat vegetables when I was younger, but now I ______ (love) them. Yesterday, I ______ (eat) a salad and ______ (think) it ______ (taste) delicious.4.What is the opposite of "clean"?A. DirtyB. SlowC. TallD. Heavy5.Which of these is a shape?A. CircleB. BookC. ChairD. Bag6.Which of these is a shape?A. CircleB. AppleC. CatD. Fish7.What do you use to make a phone call?A. PhoneB. SpoonC. ScissorsD. Hat8.Whats your name?A. I am fine.B. My name is Tom.C. I like dogs.D. I am ten years olD.9.What do we use to cook food?A. KnifeB. SpoonC. StoveD. Plate10.Which of these is an animal that can swim?A. DogB. FishC. LionD. Giraffe11.Which of these is used to make a sandwich?A. CheeseB. ShoesC. SpoonD. Knife12.What is the opposite of "old"?A. YoungB. LargeC. SmallD. Happy13.Which of these is a number?A. FiveB. SpoonC. PlateD. Chair14.Which of these is a body part?A. LegB. ChairC. TableD. Spoon15.Which of these is a number?A. ElephantB. ThreeC. DogD. Banana16.What is the opposite of “fast”?A. SlowB. QuickC. TallD. Heavy17.Which of these is a season?A. JanuaryB. SummerC. CarD. Dog18.This winter, my family is going to the ______ to enjoy the snow. We will go______, make a snowman, and have snowball fights. My sister loves to ride her ______, while I like to ______. Afterward, we’ll have hot ______ and eat some ______.19.Which of these is a musical instrument?A. SpoonB. GuitarC. PlateD. Knife20.Which one is a shape?A. OvalB. SpoonC. PlateD. Knife21.What is the name of the season after winter?A. SpringB. SummerC. AutumnD. Fall22.Which word is used to describe a cat’s sound?23.What time of day is it when the sun rises?A. MorningB. NoonC. EveningD. Night24.Which of these is a number?A. DogB. 5C. SpoonD. Chair25.Which of these is a day of the week?A. SummerB. JanuaryC. MondayD. October26.I have a new __. It is very fast and fun to ride. Every morning, I ride it to school. The wheels are __, and the handlebar is very __. I always wear my __ to keep safe. After school, I sometimes ride it with my friends in the __. We have races and enjoy the ride!27.Which of these is a type of food?A. PizzaB. TableC. ChairD. Plate28.Which one is the correct answer for the sentence: "She ______ to the park every day."?A. goB. goesC. goingD. gone29.Which of these is used to eat spaghetti?A. ForkB. KnifeC. SpoonD. Plate30.Which of these is used to draw?A. PencilB. PlateC. SpoonD. Chair31.My brother ______ (be) a good student. He always ______ (do) his homework on time. Last week, he ______ (get) an A on his math test. We ______ (celebrate) by going out for ice cream. He ______ (be) very proud of his achievement.32.What do we use to eat rice?A. KnifeB. SpoonC. ForkD. Chopsticks33.Which of these is a cold drink?A. CoffeeB. MilkC. LemonadeD. Hot water34.Which of these is a body part?35.What is the opposite of "happy"?A. SadB. TallC. FastD. Strong36.What do we use to measure time?A. SpoonB. ClockC. KnifeD. Plate37.What is the opposite of "up"?A. DownB. RightC. LeftD. Forward38.What _______ this?A. isB. areC. amD. be39.What should you do if you spill water on the floor?A. Leave itB. Call someone else to clean itC. Use a towel or mop to clean itD. Wait until it dries40.Which of these is used for eating?A. ForkB. PlateC. KnifeD. Spoon41.Which of these is a time of the day?A. MorningB. SummerC. JuneD. Table42.What is the opposite of "tall"?A. SmallB. ShortC. BigD. Fast43.Which sentence correctly uses the plural form of "child"?A. There are two childs in the park.B. There are two children in the park.C. There are two child in the park.D. There are two childrens in the park.44.What is the capital city of China?A. BeijingB. ShanghaiC. Hong KongD. Shenzhen45.Which of these is a day of the week?A. JanuaryB. SummerC. FridayD. December46.My father ______ a teacher.A. isB. amC. areD. be47.I usually ______ (take) the bus to school, but today I ______ (walk). It ______ (be)a nice day, so I ______ (decide) to enjoy the walk.48.There _______ a dog in the park.A. isB. areC. wasD. be49.I always ______ (wear) my red jacket in winter. Last year, I ______ (buy) a new jacket, but I ______ (not/like) it. It ______ (be) too big for me, so I ______ (return) it to the store.50.Which of these is a mammal?A. BirdB. FishC. LionD. Shark(答案及解释)。

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