c++4练习
2014《C语言程序设计》专升本练习题
《C语言程序设计》专升本练习题(学习资料仅供练习)目录专升本《C语言》练习题一 (1)专升本《C语言》练习题二 (9)专升本《C语言》练习题三 (17)专升本《C语言》练习题四 (24)专升本《C语言》练习题五 (31)专升本《C语言》练习题六 (42)专升本《C语言》练习题七 (48)专升本《C语言》练习题八 (58)专升本《C语言》练习题九 (65)专升本《C语言》练习题十 (72)专升本《C语言》练习题一6 10专升本《C语言》练习题二专升本《C语言》练习题三一、单项选择题1. C语言源程序文件经过编译连接之后生成一个后缀为__C__的文件。
A.”.c”B.“.obj”C.“.exe”D.“.bas”2. 以下选项中不正确的整型常量是_C____。
A. 12LB. -10C. 1,900D. 123U3. 表达式___C___的值是0。
A.3%5B.3/5.0C.3/5D.3<54. 表达式!(x>0||y>0) 等价于__D___。
A.!x>0||!y>0B.!(x>0)||!(y>0)C.!x>0&&!y>0D.!(x>0)&&!(y>0)5. 若变量已正确定义并赋值,表达式__D____不符合C语言语法。
A.4&&3B.+aC.a=b=5D.int(3.14)6. 若变量已正确定义,执行语句scanf("%d%d%d ",&k1,&k2,&k3);时,___B___是正确的输入。
A.2030,40B.20 30 40C.20, 30 40D.20, 30,407. 执行语句printf(”__D____”, 2); 将得到出错信息。
A.%dB.%oC.%xD.%f8. 设变量定义为“int s[ ]="hello\nworld\n";”,则数组s中有__B__个元素。
2024年人教版三年级上册英语第四单元课后练习4(含答案和概念)
2024年人教版三年级上册英语第四单元课后练习4(含答案和概念)试题部分一、选择题:1. In Unit 4, which word means "big" in English?A. smallB. tallC. largeD. shortA. bigB. smallC. tallD. short3. What is the opposite of "hot"?A. coldB. warmC. coolD. hot4. Which of the following is a fruit?A. appleB. catC. dogD. pen5. Which sentence is correct?A. She like apples.B. He likes apple.C. I am like apples.D. They like apples.6. Look at the picture, what's the weather like?A. SunnyB. RainyC. WindyD. CloudyA. doctorB. teacherC. studentD. worker8. What's the English word for "老师"?A. doctorB. teacherC. studentD. worker9. Which of the following is not a colour?A. redB. blueC. catD. yellow10. What's the English word for "蓝色"?A. redB. blueC. greenD. yellow二、判断题:1. "I am tall" means "我矮". ( )2. "She likes apples" is a correct sentence. ( )3. "Dog" and "cat" are both fruits. ( )4. "Sunny" and "rainy" are types of weather. ( )5. "Worker" and "teacher" are both jobs. ( )6. "Red" and "blue" are colours. ( )7. "I am a student" means "我是一名老师". ( )8. "He likes bananas" is a correct sentence. ( )9. "Hot" and "cold" are opposite words. ( )10. "I have a big dog" means "我有一只小猫". ( )三、填空题:1. The opposite of "big" is ________.2. "I have a _______ pen." (填颜色)3. "She is a ________." (填职业)4. "The weather is ________ today." (填天气)5. "My mother is very ________." (填形容词)6. "I like to eat ________." (填水果)7. "This is a ________ book." (填形容词)8. "The sky is ________." (填颜色)9. "He is a ________." (填职业)10. "I am feeling ________." (填感觉)11. "My birthday is in ________." (填月份)12. "I go to school ________." (填交通工具)13. "She ________ her homework every day." (填动词)14. "Can you ________ the window?" (填动词)15. "We are ________ to the park." (填动词)16. "The cat is ________ on the bed." (填动词)17. "I ________ an apple and a banana." (填动词)18. "They are ________ a game." (填动词)19. "________ is your favourite colour?" (填疑问词)20. "________ are you?" (填问候语)四、简答题:1. What is your favourite fruit? Why do you like it?2. Describe your best friend.3. What do you do in your free time?4. What is your mother's job? What does she do?5. What is the weather like in summer?6. How do you go to school every day?7. What is your favourite colour? Why?8. What do you do when it rains?9. What time do you usually wake up in the morning?10. What is your favourite subject in school? Why do you like it?一、选择题答案:1. C2. A3. A4. A5. D6. A7. B8. B9. C10. B二、判断题答案:1. ×2. √3. ×4. √5. √6. √7. ×8. √9. √10. ×三、填空题答案:1. small2. blue3. teacher4. sunny5. kind6. apples7. interesting8. blue9. doctor10. happy11. July12. bus13. does14. open15. going16. sleeping17. eat18. playing19. What20. How are四、简答题答案:1. My favourite fruit is apple because it's sweet and crunchy.2. My best friend is tall and has short hair. She likes to play basketball.3. In my free time, I like to read books and play video games.4. My mother is a teacher. She teaches English at amiddle school.5. The weather in summer is usually hot and sunny.6. I go to school bus every day.7. My favourite colour is blue because it reminds me ofthe ocean.8. When it rains, I usually stay at home and read a book.9. I usually wake up at 7 o'clock in the morning.10. My favourite subject is math because I like solving problems.单词意义与用法:包括形容词、名词、动词的正确选择和使用,如"big", "small", "fruit", "like", "do"等。
牛津译林版(2024年)七年级英语上册 Unit 4 同步练习(含答案)
2024-2025学年七年级英语上册牛津译林版(2024年)Unit 4Assessment&Future study一、完成句子12345She usually gets up at a quarter to eight and starts her 6 day. Then she has a shower and gets dressed. After that, she goes downstairs and has7 with her parents. She usually has milk, bread and an egg. Then she8 her teeth because she wants to keep them white and healthy!After that, she gets her schoolbag and goes to the bus stop to 9the school bus. Classes start at half past eight and finish at half past four. She usually has lunch at the school canteen with her 10 at about 12 o’clock. Her best friend is Amy, and Sophia always 11 next to her at lunch. They usually have rice, soup, salad and meat. They have a 12 for one and a half hours and then they go on with their afternoon classes.After school she returns home and does her homework. She is a very 13 pupil, so she never forgets any school tasks! After homework, she usually listens to music and watches TV a bit.At half past seven, it is time for dinner. She likes eating a sandwich with strawberry juice. Then she usually reads a book or 14 the school day with her parents for a while.15 , she goes to bed at about ten o’clock.6.A.bad B.boring C.tired D.busy 7.A.breakfast B.lunch C.dinner D.tea8.A.washes B.watches C.brushes D.worries9.A.find B.catch C.keep D.stop 10.A.brothers B.parents C.sisters D.classmates 11.A.sits B.waits C.plays D.works12.A.party B.meeting C.break D.lesson 13.A.famous B.hard-working C.quiet D.poor14.A.thinks about B.puts on C.listens to D.talks about 15.A.Finally B.Carefully C.Early D.Quickly三、选词填空请根据句子意思,用方框中所给单词或短语的适当形式填空并完成句子(不可重复使用)。
2024年人教版一年级上册语文第四单元课后练习题(含答案和概念)
2024年人教版一年级上册语文第四单元课后练习题(含答案和概念)试题部分一、选择题:1. 下列哪个字是第四单元《天地人》中的字?()A. 日B. 月C. 天D.山2. 《金木水火土》一文中,下列哪个字代表“火”?()A. 氵B. 灬C. 木D. 土3. 《对韵歌》中,“云”和“雨”是一对什么?()A. 反义词B. 同义词C. 对韵词D. 近义词4. 第四单元中,《升国旗》一课描述的是哪个场景?()A. 上学B. 放学C. 升国旗D. 做早操5. 下列哪个字是第四单元《对韵歌》中的字?()A. 花B. 草C. 鸟D. 鱼6. 《天地人》一文中,下列哪个词代表“大地”?()A. 天地B. 大地C. 山河D. 湖海7. 第四单元《对韵歌》中,“上”和“下”属于什么关系?()A. 反义词B. 对韵词C. 同义词D. 近义词8. 下列哪个字是第四单元《金木水火土》中的字?()A. 火B. 水C. 土D. 风9. 《对韵歌》中,“云”和“雨”分别属于哪一类自然现象?()A. 天气B. 气候C. 自然现象D. 地理现象10. 第四单元《升国旗》一课中,国旗升起时我们应该怎么做?()A. 敬礼B. 鞠躬C. 拍手D. 跳舞二、判断题:1. 第四单元《天地人》一文中,天和地是相互依存的。
()2. 《金木水火土》一文中,金、木、水、火、土是五种基本物质。
()3. 《对韵歌》中的词语都是反义词。
()4. 第四单元《升国旗》一课中,国旗升起时我们要立正敬礼。
()5. 《天地人》一文中,人和天地是相互关联的。
()6. 《金木水火土》一文中,火代表炎热。
()7. 《对韵歌》中的词语都是同义词。
()8. 第四单元《升国旗》一课中,国旗升起时我们可以随意走动。
()9. 《天地人》一文中,天地万物都有其规律。
()10. 《金木水火土》一文中,五行相生相克,体现了我国古代哲学思想。
()三、填空题:1. 《对韵歌》中,“云”对“___”,“雨”对“___”。
第4章 化学热力学基础习题
第4章化学热力学基础习题第4章-化学热力学基础习题第四章化学热力学的基本练习1.选择题4-1在下列物质中?FHM不等于零()(a)cl2(g)(b)o2(g)(c)c(金刚石)(d)ne(g)4-2下列说法中正确的是()(a)稳定单质的?fhm、?fgm、sm都为零(b)放热反应总是自发发生的(c)h2(g)的标准燃烧热等于h2o(l)的?fhm?(d)co2(g)的?fhm也就是co(g)的标准燃烧热4-3在下列反应中,释放能量最多的是()(a)ch4(l)+2o2(g)→co2(g)+2h2o(g)(b)ch4(g)+2o2(g)→co2(g)+2h2o(g)(c)ch4(g)+2o2( g)→co2(g)+2h2o(l)(d)ch4(g)+3O2(g)→ CO(g)+2H2O(L)24-4以下陈述是正确的()(a)rsm=??sθ(生成物)-??sθ(反应物)(b)对于自发反应,系统自由能的减少等于系统对环境所做的最大功(c)某气相反应?rgm是指反应物与产物都处于298k且气体总压为101.3kpa时,反应的自由能发生变化。
(d)同类型的二元化合物可用它们的?fhm值直接比较其热力学稳定性。
?4-5已知2pbs(s)+3o2(g)=2pbo(s)+2so2(g)?rhm=-843.4kjmol-1则该反应的QV值为()(a)840.9(b)845.9(c)-845.9(d)-840.94-6下列物质中,摩尔熵最大的是()(a) caf2(b)cao(c)caso4(d)caco34-7下列反应中?rsm最大的是()一(a)c(s)+o2(g)→co2(g)(b)2so2(g)+o2(g)→2so3(g)(c) 3h2(g)+n2(g)→2nh3(g)(d)cuso4(s)+5h2o(l)→cuso45h20(s)4-8下列反应中?rhm等于产物?fhm的是()11h2(g)+i2(g)→hi(g)221(c)h2(g)+cl2(g)→2hcl(g)(d)h2(g)+o2(g)→h2o(克)2(a)co2(g)+cao(s)→caco3(s)(b)4-9在以下反应中?RGM等于乘积?女性生殖器切割是()(a)ag+(aq)+cl-(aq)→agcl(s)(b)2ag(s)+cl2(g)→2agcl(s)(c)ag(s)+11cl2(g)→氯化银(s)(d)银(s)+cl2(l)→agcl(s)22?4-10对CH4(g)+2O2(g)反应的影响→ 二氧化碳(g)+2H2O(L)?RHM,以下哪项陈述是正确的()a、 ?。
统计学练习4
CH4 统计学选择题班级学号姓名1.(A )一组数据中出现频数最多的变量值成为。
A.众数B. 中位数C. 四分位数D. 平均数2. (C )下列关于众数的叙述,不正确的是。
A.一组数据可能出现多个众数B. 众数主要适用于分类数据C. 一组数据的众数是唯一的D. 众数不受极端值的影响3. (B )一组数据排序后处于中间位置上的变量值成为。
A. 众数B. 中位数C. 四分位数D. 平均数4. (C )一组数据排序后处于25%和75%位置上的值称为。
A. 众数B. 中位数C. 四分位数D. 平均数5. (A )非众数组的频数占总频数的比例称为。
A. 异众比率B. 离散系数C. 平均差D.标准差6. (A )四分位差是。
A.上四分位数减下四分位数的结果B.下四分位数减上四分位数的结果C.下四分位数加上四分位数D.下四分位数与上四分位数的中间值7. (C )一组数据的最大值与最小值之差称为。
A. 平均差B. 标准差C. 极差D. 四分位差8. (C)各变量值与其平均数离差平方的平均数称为。
A. 极差B. 平均差C. 方差D. 标准差9. (A )变量值与其平均数的离差除以标准差后的值称为。
A. 标准分数B. 离散系数C. 方差D. 标准差10. (B )如果一个数据的标准分数是-2,表明该数据。
A.比平均数高出2个标准差B. 比平均数低2个标准差C. 等于2倍的平均数D. 等于2倍的标准差11. (A )如果一个数据的标准分数是3,表明该数据。
A. 比平均数高出3个标准差B. 比平均数低3个标准差C. 等于3倍的平均数D. 等于3倍的标准差12. (A )经验法则表明,当一组数据对称分布时,在平均数加减1个标准差的范围之内大约有。
A. 68%的数据B. 95%的数据C. 99%的数据D. 100%的数据13. (B )经验法则表明,当一组数据对称分布时,在平均数加减2个标准差的范围之内大约有。
A. 68%的数据B. 95%的数据C. 99%的数据D. 100%的数据14. (C )经验法则表明,当一组数据对称分布时,在平均数加减3个标准差的范围之内大约有。
2024年数学七年级代数专项练习题4(含答案)
2024年数学七年级代数专项练习题4(含答案)试题部分一、选择题:1. 下列哪个数是代数式3x 5的最小值?()A. 2B. 5C. 0D. 32. 已知a ≠ 0,下列各式中,与代数式2a 3b相等的是()A. 2(a 3b)B. 2(a b) 3bC. 2a 3(b a)D. 2(ab) + 33. 计算代数式5x 2(x + 3)的结果是()A. 3x 6B. 3x + 6C. 8x 6D. 8x + 64. 下列哪个代数式在x=2时,其值等于0?()A. 3x 6B. 2x + 4C. x^2 4D. x^2 5x + 65. 已知2x 3y = 7,下列哪个等式与原等式同解?()A. 4x 6y = 14B. 4x 6y = 21C. x 3y = 7D. 2x 3y = 146. 下列哪个代数式是单项式?()A. 3x + 2yB. 5x^2C. 2x^2 3x + 1D. 4xy7. 若代数式5x 3的值是8,则x的值为()A. 3B. 2C. 1D. 18. 下列哪个等式是二元一次方程?()A. 3x^2 + 4y = 7B. 2x 3 = 5C. x + y^2 = 6D. 4x + 5y = 109. 计算代数式2(a 3) 4(2a + 1)的结果是()A. 6a 10B. 6a + 10C. 6a 10D. 6a + 1010. 若代数式3x 4的值大于2,则x的取值范围是()A. x > 2B. x > 3C. x < 2D. x < 3二、判断题:1. 代数式3x + 5的值随x的增大而减小。
()2. 任何两个代数式相加,结果仍然是代数式。
()3. 当x=0时,代数式2x^2 3x + 1的值为1。
()4. 两个一次方程的解集相同,则这两个方程是同解方程。
()5. 代数式5x^3 2x^2 + 3x 1是五次多项式。
()6. 任何两个单项式相乘,结果仍然是单项式。
计算机文化基础练习题4
一、单选题:(50道)1. 计算机的硬件主要包括:中央处理器(CPU)、存储器、输出设备和()。
A. 键盘B。
鼠标 C. 输入设备 D. 显示器2. 在下列设备中,不能作为微机输出设备的是( ).A. 打印机B. 显示器C。
鼠标器D。
绘图仪3。
下列叙述中,正确的是()。
A. CPU能直接读取硬盘上的数据B。
CPU能直接存取内存储器C. CPU由存储器、运算器和控制器组成D。
CPU主要用来存储程序和数据4。
假设某台式计算机的内存储器容量为128MB,硬盘容量为10GB。
硬盘的容量是内存容量的( )。
A。
40倍B。
60倍 C. 80倍D。
100倍5. 在计算机中,每个存储单元都有一个连续的编号,此编号称为( )。
A. 地址B. 位置号C。
门牌号D。
房号6。
在CD 光盘上标记有“CD—RW”字样,此标记表明这光盘().A. 只能写入一次,可以反复读出的一次性写入光盘B. 可多次擦除型光盘C。
只能读出,不能写入的只读光盘D。
RW是Read and Write 的缩写7。
组成微型机主机的部件是( )。
A。
CPU、内存和硬盘 B. CPU、内存、显示器和键盘C。
CPU和内存D。
CPU、内存、硬盘、显示器和键盘套8. 构成CPU的主要部件是()。
A. 内存和控制器B。
内存、控制器和运算器C。
高速缓存和运算器 D. 控制器和运算器9. 用来存储当前正在运行的应用程序的存储器是()。
A。
内存 B. 硬盘C。
软盘 D. CD-ROM10. 下列设备组中,完全属于计算机输出设备的一组是()。
A。
喷墨打印机, 显示器,键盘 B。
激光打印机,键盘,鼠标器C. 键盘,鼠标器,扫描仪D. 打印机,绘图仪,显示器11. 把内存中数据传送到计算机的硬盘上去的操作称为()。
A。
显示B。
写盘 C. 输入D。
读盘12。
DVD-ROM 属于( )。
A。
大容量可读可写外存储器B。
大容量只读外部存储器C。
CPU可直接存取的存储器 D. 只读内存储器13. 能直接与CPU交换信息的存储器是().A。
牛津译林版(2024)七年级英语上册Unit4SchoolDays单元加强练习(含答案)
新版七上 Unit 4加强练习一、单项选择1. Tina lives far away, but she is ________the first one to get to school.A. alwaysB. seldomC. hardly(几乎不)D. never2. I like ________ because I can learn a lot of places all around the world.A. GeographyB. ChineseC. BiologyD. English3. We hope our school can invite some experts (专家) to give us a talk ________.A.at a timeB.at the same timeC. from time to timeD. all the time4. What you said is ________ right. It is surly a ________ village.A. quiet; quiteB. quite; quiteC. quiet; quietD. quite; quiet5. -- Spring is coming. Do you often see colourful kites _____ in the sky?-- Certainly. It is the best time ______ kites.A. fly; flyingB. flying; to flyC. flying; flyingD. fly; to fly6. -- Whose are these Geography books?--They are Lucy's. Give to , please.A. it; sheB. them; sheC.it; herD. them; her7. --I can’t find ________ eraser anywhere. Could I borrow ________? — Of course.A.mine; yoursB. my; yoursC. my; yourD. mine; your8.--May I your notebook, Wang Xinyue ?—Of course , but you can't to others.A. borrow; lendB. borrow; borrowC. lend; borrowD. lend; lend9. —Why don’t you like geogr aphy?—Well, the teacher is friendly, but the classes are too for me.A. e asyB.relaxingC.healthyD.difficult10. --Excuse me, I'd like to buy a dress. -- . Women's clothes are on the third floor.A. I don't knowB. Of courseC. All rightD. This way, please二、完形填空Can you imagine turning your school into a farm? This is 1students did at Zhengzhou Foreign Language Middle School.Thanks to the “double reduction” policy(“双减”政策), students can join many new 2and do more after⁃school activities. One of the most popular clubs 3 the Happy Farming Club.“At first I thought I could just grow(种植) some vegetables here,” said Zhang Xin, a club member. “But it turned out that I also learned a lot 4 agriculture(农业) and biology.”After 5 crops(庄稼) like wheat and garlic, students got the chance(机会)to grow them. “My group tried growing leeks(韭葱),” said Zhang. “We 6put the roots(根) underground. Then we covered them with a thin layer of soil(土) and watered them. After doing all these, we had a great sense of achievement(成就感). We hope the leeks can grow 7!”Some groups grew 8things such as wheat and spinach(菠菜). To tell them apart, students put up boards with the vegetables’ names on them. The campus(校园) 9 like a small farm now.“In the 38 years of our school’s 10, we are the first to grow vegetables,” said Zhang. “This is a really special experience!”1.A.how B.what C.when D.why2.A.subjects B.classes C.lessons D.clubs3.A.am B.is C.are D.was4.A.about B.in C.of D.with5.A.growing B.buying C.eating D.studying6.A.just B.also C.first D.really7.A.badly B.well C.weakly D.really8.A.other B.same C.true D.easy9.A.tastes B.sounds C.smells D.looks10.A.activity B.people C.history D.building三、阅读理解(A)Welcome to the Milly & Willy Hotel. To make your stay as pleasant as possible, we'd like you to follow the rules below during your stay at the hotel.Check-in After 3:00 p.m. every day Check-out Before 2:00 p.m. every dayBreakfast * Buffet breakfast(自助早餐): from 7:00 a.m. to 10:00 a.m.* In-room breakfast: from 6:00 a.m. to 11:00 a.m.* Buffet breakfast at the restaurant on the second floor is free. Prices for meals and drinks served in rooms can be found on the room service(服务) price list.Pets Guests can have dogs weighing less than 40 kg (no more than two dogs per room)staywith them at a charge(收费) of $85 per night per dog. Service dogs are always welcome at no charge.Visitors Guests may have visitors after registering(登记) at the Front Office. Visitors have to leave before 10:00 p.m.Parking Car parking is free for hotel guests.()1. What do we know about the in-room breakfast?A. Guests don't need to pay for it.B. It starts at 7:00 a.m. every day.C. It is free at the restaurant on the second floor.D. Prices for it are on the room service price list. ()2. What is the charge for a service dog per night?A. $85.B. $58.C. $40.D. $0.()3. Which of the following is TRUE about living in the hotel?A. Guests have to pay for parking.B. A guest can only bring one dog.C. Visitors can stay until 10:00 p.m.D. Guests can cook in their rooms.(B)Do you remember (记得) your mother saying "You know those songs very well. I hope you know schoolwork well too"? The eighth graders of Eben Donges High School in Cape Town, South Africa (南非开普敦市) can tell their mums "Yes!" and it's all because of their Maths teacherKurt Minnaar, 33 years old. He is using his dance moves and rap (说唱) music to help students remember their multiplication tables (乘法表).Kurt was a hip-pop dancer before he became a teacher. He is now using his music to make Maths fun for children. His classes are often rowdy as students sing and dance together in class.But luckily the teachers in the school don't mind (介意)."The students didn't listen to me carefully(仔细地) in class in the past (过去). I wanted to help my students learn Maths well and easily. What's better than rap music?"Kurt said.With the help of some friends, Kurt thought of two 60-second Maths songs, called "Cre- eight"and "Van Guard". He raps off the seven and eight multiplication tables. Kurt is working on six now, and soon he will make a rap album (专辑) with all the numbers."Mr Minnaar often helps us a lot. I like his raps very much and they help make my Maths better,"a 15-year-old student called Jabulani Dyantyi said.()1. Kurt was a _____ in the past.A. music teacherB. music writerC. hip-pop dancerD. popular singer ()2. The underlined word "rowdy" in Paragraph 2 means "_____ "in Chinese.A.安静的B.有序的C.拥挤的D.嘈杂的()3. Which of the following is NOT true?A. Kurt uses hip-pop dance and rap music to make Maths fun for his students.B. Kurt made two Maths songs.C. Kurt made the Maths songs all by himself (独自).D. Kurt will make a rap album with all the numbers.()4. Jabulani Dyantyi thought _____.A. Kurt should teach MusicB. it was hard to learn MathsC. Kurt's Maths class was difficultD. Kurt taught Maths in an interesting way()5. What do you think of Kurt?A. Strict (严格的) but cute.B. Clever and helpful.C. Kind but slow.D. Careful and cool.(C)Do you like walking in the forest or climbing the hill? Studies(研究) show that staying in a green place will make people feel comfortable and happy. But how about blue places? They include beaches, rivers, lakes and some other areas with water."There are a lot of studies on how green places help with people’s health and feelings, but not many on blue places," Mark Nieuwenhuijsen, a scientist, says.Are blue places good for people's health and feelings too? To learn about it, Mark and his team make a study. It takes three weeks. In the first week, 59 people spend 20 minutes each day walking along a beach in Barcelona, Spain. Then, during a different week, they spend 20 minutes walking along city streets. In the third week, they spend 20 minutes walking indoors. After each activity, the team uses some ways to assess(评估) people's feelings and health. Then they find that walking in blue places really helps a lot.About 55% of people around the world now live in cities and there will be more in the future.It is important for people to build more blue and green places in our daily life.()1. Blue places mainly(主要地) mean places with _____ according to Paragraph 1.A. plantsB. animalsC. grassD. water()2. What does Mark mean in Paragraph 2?A. Blue places don't help with people's health.B. Green and blue places are both good for health.C. People don't spend a lot of time staying in blue places.D. There are only a few studies on blue places.()3. In Mark's study, which elements(要素) is different in the three weeks?A. People.B. Time.C. Places.D. Activities.()4. Which of the following is NOT true according to the last paragraph?A. There are more people in cities than outside cities around the world now.B. About 55% of people will live in cities around the world in the future.C. More and more people will live in cities in the future.D. We should have more blue and green places in our daily life.四、还原句子阅读下面短文,从短文后所给的六个选项中选出四个可以填入空白处的最佳选项。
一图四式的练习题
一图四式的练习题[正文]本练习题以一张图为基础,共包含四个不同的练习题,旨在提供多样化的练习内容,帮助读者提高解题能力和思维灵活性。
以下是具体的题目和解析:练习题1:[题目描述] 根据图中给出的数据,计算A、B、C三个数的平均值。
[图示](图片为一张包含数据的表格,内含A、B、C三个数的具体数值)[解析]根据图中给出的数据,首先求出A、B、C三个数的和,然后将和除以3即可得到平均值。
具体计算步骤如下:A +B +C = (根据表格数据计算)平均值 = (A + B + C)/ 3练习题2:[题目描述] 根据图中给出的折线图,回答以下问题:1. 哪个年份的销售额最高?2. 哪个年份的销售额最低?[图示](图片为一张折线图,横轴表示年份,纵轴表示销售额)[解析]根据图中的折线图,可以观察每个年份的销售额,并比较大小,答案如下:1. 销售额最高的年份为(根据图表数据得出)。
2. 销售额最低的年份为(根据图表数据得出)。
练习题3:[题目描述] 根据图中的条形图,判断以下陈述是否正确:陈述1:B项的数量超过了C项的数量。
陈述2:A项和D项的数量之和大于C项的数量。
[图示](图片为一张条形图,横轴表示不同项,纵轴表示数量)[解析]根据图中的条形图,可以观察各项的数量,并根据陈述进行判断,答案如下:陈述1:(根据图表数据判断)。
陈述2:(根据图表数据判断)。
练习题4:[题目描述] 根据图中的饼图,回答以下问题:1. B项占总量的百分比是多少?2. C项的百分比比A项多出了多少?[图示](图片为一张饼图,展示了不同项的占比情况)[解析]根据图中的饼图,可以计算各项占总量的百分比,答案如下:1. B项占总量的百分比为(根据图表数据计算)%。
2. C项的百分比比A项多出了(根据图表数据计算)%。
以上是一图四式的练习题,通过对不同类型图表的观察和计算,读者可以提升数据分析和解题能力。
请读者根据具体题目进行思考和求解,加强对图表数据的理解和应用能力。
C语言练习题
练习一1、把十进制数56,-74转化为对应的二进制数,并分别写出它们的8位原码和补码。
2、什么是浮点数?计算机内部是如何存储浮点数的?3、什么是ASCII码?ASCII码编码方案有何特点?试述常用字符的大致编码顺序。
4、什么是汉字的机内码?在计算机的内存中如何区分机内码与ASCII码?5、试述计算机内部采用二进制工作的原因,以及计算机的工作原理。
6、试述程序设计的概念,以及程序设计的基本过程。
7、什么是算法?算法有哪些特性和描述方法?算法与程序的关系如何?8、什么是高级语言?有哪些主要的高级语言?9、什么是标识符和关键字?它们分别有什么作用?10、标识符是如何构成的?使用标识符时应注意哪些问题?11、下列字符序列中,哪些可以构成合法的标识符?signed a-1 x_y_1 $use π0x56 sum num# _1234 age12、试述C程序的基本结构。
13、试述C程序上机的全过程,并解释这过程中产生的各类错误的含义。
练习二1、C语言的基本数据类型有哪些?数据类型对数据的表示和运算有什么约束?2、什么是常量?数值常量和符号常量有何区别?使用符号常量有什么好处?3、什么是变量?变量的名字、地址、值、类型有什么关系?4、如何定义变量?C语言中为什么规定变量必须先定义,后使用?5、常量也有数据类型,请问如何区分整型常量和实型常量的数据类型?6、字符常量与字符串常量的表示形式有何区别?'a'和"a"有什么不同?7、字符串常量"\\\34ab\n"中有多少个字符?8、下列表达式计算时,哪些地方会发生类型转换?从什么类型转换到什么类型?表达式计算的结果是什么类型?值多少?(1) 2.5+2*7%2/4 (2) 4*(2L+6.5)-12(3) 10/(5*3) (4) 2*10.0/(5*3)9、设有变量定义:float x=2.7,y=4.5; int a=8; 求表达式y+a%5*(int)(x+y)/2%4 的值。
外研版(三起)英语三年级上册全册同步练习(20套)附答案
Module 1 Unit 1 I’m Sam.一、我会连。
(将人名与图片用线连起来)1. Daming2. Sam3. Amy4. LinglingA. B. C. D.二、小蜜蜂采花蜜。
(选择合适的标号填空)是你好再见我我是A. B. C. D. E.hello am I’m1. 2. 3.()()()goodbye I4. 5.()()三、选择与图片相对应的句子,在前面的括号内打“√”。
1. () A. I’m Amy.() B. I’m Lingling.2. () A. I am Daming.() B. I am Sam.3. () A. Hello, Lingling.() B. Byebye.4. () A. Goodbye.() B. I’m Amy.四、情景交际。
() 1. 当你遇到Lingling时,你应该说:________A. Hello, I’m Lingling.B. Hello, Lingling. () 2. 当Tom 向别人介绍自己时应说:________A. Hello, I am Tom.B. Hello, Tom. () 3. 放学时老师会对你说:________A. Hi.B. Bye-bye.() 4. 班内新转来的同学自我介绍叫Amy,你应该对她说:________A. Hello, Amy.B. Hello, I’m Amy.五、读一读,连一连。
1. A.2. B.3. C.4. D.答案:一、1. D 2. A 3. C 4. B二、1. B 2. A 3. E 4. C 5. D三、1. B 2. A 3. A 4. A四、1. B 2. A点拨:自我介绍时一般用I’m ...3. B4. A五、1. C点拨:Hello...的答语是Hello...或Hi...。
根据人名可知选C。
2. D3. A4. BModule 1 Unit 2 How are you?一、每组中有一只小猫排错了队,请你把它找出来。
C语言程序设计教程 第五章 课后习题参考答案
C语言程序设计教程第五章课后习题参考答案一、选择题1. B2. A3. C4. B5. D二、填空题1. while2. binary3. 164. 35. continue6. global三、判断题1. 错误2. 正确3. 错误4. 错误5. 正确四、编程题1.```c#include<stdio.h>int main() {int num;printf("请输入一个整数:"); scanf("%d", &num);if (num % 2 == 0) {printf("%d是偶数\n", num); } else {printf("%d是奇数\n", num); }return 0;}```2.```c#include<stdio.h>int main() {int num1, num2;printf("请输入两个整数:");scanf("%d %d", &num1, &num2);printf("%d与%d的和为%d\n", num1, num2, num1 + num2); return 0;}```3.```c#include<stdio.h>int isPrime(int num) {int i;if (num <= 1)return 0;for (i = 2; i <= num / 2; i++) {if (num % i == 0) {return 0;}}return 1;}int main() {int num;printf("请输入一个整数:");scanf("%d", &num);if (isPrime(num)) {printf("%d是素数\n", num); } else {printf("%d不是素数\n", num); }return 0;}```4.```c#include<stdio.h>int factorial(int num) {int i, result = 1;for (i = 1; i <= num; i++) {result *= i;}return result;}int main() {int num;printf("请输入一个整数:");scanf("%d", &num);printf("%d的阶乘为%d\n", num, factorial(num)); return 0;}```五、简答题1. C语言逻辑与运算符(&&)短路特性是什么?答:C语言逻辑与运算符(&&)具有短路特性,即在进行逻辑与运算时,如果前一个表达式的值为假(0),则后面的表达式将不会被计算,整个逻辑与表达式的值直接为假(0)。
2024年五年级上册英语第四单元基础练习题(含答案)
2024年五年级上册英语第四单元基础练习题(含答案)试题部分一、选择题:10道1. Which word has the same sound as "c" in "cat"?A. carB. cupC. keyA. goB. wentC. goes3. What is the opposite of "big"?A. smallB. tallC. short4. Which of the following is a noun?A. runB. jumpC. book5. Choose the correct question word: _____ is your favorite color?A. WhatB. WhereC. Who6. Which word means "not hot"?A. coldB. warmC. cool7. What is the past tense of "do"?A. didB. doneC. does8. Which of the following is a verb?A. appleB. catC. swimA. doB. doesC. did10. What is the plural form of "child"?A. childsB. childC. children二、判断题:10道1. "Dog" and "cat" are both nouns. ( )2. "Run" and "jump" are both adjectives. ( )3. The opposite of "old" is "young". ( )4. "Where" is a question word. ( )5. "Hot" and "cold" have the same meaning. ( )6. "I go to school bus" is a correct sentence. ( )7. "She am a teacher" is a correct sentence. ( )8. "He can swim" means "He cannot swim". ( )9. "They are playing football" is in the past tense. ( )10. "The sun is shining" is a statement. ( )三、填空题:20道1. The cat is sitting on the _______.2. I have two _______ and one sister.3. My mother is a _______ and she works in a hospital.4. Can you help me _______ the book?5. The sun _______ in the east and sets in the west.6. Elephants are _______ than cats.7. She _______ to the store and bought some fruits.8. We should always _______ to our teachers.9. My birthday is in _______.10. The _______ is very bright today.11. I like to drink _______ in the morning.12. _______ is my favorite season because I like snow.13. If you want to be healthy, you should eat more_______ and exercise.14. The _______ is very big and beautiful.15. I can _______ a bike very well.16. _______ is the capital city of France.17. My brother is _______ than me.18. The _______ is shining, let's go outside.19. I _______ my homework every evening.20. The _______ is very loud, can you turn it down?四、简答题:10道1. What is the main idea of the story we read in class today?2. Can you describe your best friend?3. What do you do after school every day?4. Why is it important to learn English?5. What is your favorite animal and why?6. How do you celebrate your birthday?7. What is your favorite subject in school and why?8. Can you explain the difference between "like" and "love"?9. What do you want to be when you grow up?10. How do you help your parents at home?一、选择题答案:1. B2. B3. A4. C5. A6. C7. A8. C9. B10. C二、判断题答案:1. √2. ×3. √4. √5. ×6. √7. ×8. ×9. ×10. √三、填空题答案:1. chair2. brothers3. doctor4. find5. rises6. bigger7. went8. listen9. June10. sky11. milk12. Winter13. vegetables14. ocean15. ride16. Paris17. taller18. sun19. do20. music四、简答题答案:1. The main idea of the story is2. My best friend is3. After school, I4. It is important to learn English because5. My favorite animal is because6. I celebrate my birthday7. My favorite subject is because8. The difference between "like" and "love" is9. When I grow up, I want to be10. I help my parents at home。
4年级上册语文练习册答案
4年级上册语文练习册答案一、选择题1. A2. B3. C4. A5. C6. B7. A8. C9. B 10. C二、填空题1. 吗2. 画3. 学生4. 月5. 号6. 公园7. 星期8. 吧9. 在 10. 一点三、连线题1. d2. a3. e4. b5. c四、阅读理解题1. 题目:阅读下面的句子,给句子排序。
答案:1. 小燕和小亮是我们班的同学。
2. 小燕每天骑自行车上学。
3. 小亮每天走路上学。
4. 小燕常常迟到。
5. 小亮总是准时到校。
2. 题目:阅读短文,选择正确的答案。
答案: C3. 题目:阅读短文,判断下列句子的正误。
答案: 1. 正确 2. 错误 3. 错误 4. 错误 5. 正确4. 题目:根据短文内容,填入恰当的词语。
答案: 1. 功课 2. 懒惰 3. 喜欢 4. 任务 5. 好好五、写作题题目:写一封信给你的朋友,介绍你假期都做了些什么。
答案:亲爱的朋友,你好!我希望你在假期里过得很开心。
我想告诉你我都做了些什么,让你了解一下我的假期生活。
首先,我去了一趟上海迪士尼乐园。
那里真的很好玩,我和家人一起玩了好多刺激的游戏,还看到了一些精彩的表演。
我真的非常喜欢那里,希望下次你也可以一起来。
除了去迪士尼乐园,我还参加了一个夏令营活动。
在那里,我结交了许多新朋友,一起做了很多有趣的活动,比如露营、爬山和游泳。
我学到了很多新的知识,并且度过了愉快的时光。
假期期间,我还去了图书馆借了一些好书。
我是一个爱读书的人,我喜欢阅读各种各样的书籍,尤其是冒险和悬疑小说。
每晚,我都会躺在床上读书,通过阅读开拓我的想象力。
最后,我还参加了一些课外班的学习。
我报名了数学和绘画课程,想要提高我的数学技能和绘画水平。
经过一段时间的学习,我觉得自己取得了进步,也更有自信了。
这就是我假期的一些活动,我觉得这个假期非常充实和有意义。
我希望你也过得很好,期待下次见面!祝好,XX六、总结通过这份4年级上册语文练习册答案,我们可以看出,学生在这一学期学习了许多有趣的内容。
计算机应用基础(第四版)-高职计算机大类专业题库1-10章练习题带答案测试题自测题
习题1一、选择题1.所有C函数的结构都包括的三部分是( )。
A.语句、花括号和函数体B.函数名、语句和函数体C.函数名、形式参数和函数体D.形式参数、语句和函数体2.C程序由( )组成。
A.子程序B.主程序和子程序C.函数D.过程3.下面属于C语言标识符的是( )。
A.2ab B.@f C.?b D._a124.C语言中主函数的个数是( )。
A.2个B.1个C.任意个D.10个5.下列关于C语言注释的叙述中错误的是( )。
A.以“/*”开头并以“*/”结尾的字符串为C语言的注释内容B.注释可出现在程序中的任何位置,用来向用户提示或解释程序的意义C.程序编译时,不对注释作任何处理D.程序编译时,需要对注释进行处理6.下列不是C语言的分隔符的是( )。
A.逗号B.空格C.制表符D.双引号7.下列关于C语言的关键字的叙述中错误的是( )。
A.关键字是C语言规定的具有特定意义的字符串,通常也称保留字B.用户定义的标识符不应与关键字相同C.ANSI C标准规定的关键字有64个D.ANSI C标准规定的关键字有32个8.在Visual C++ 6.0环境下,C源程序文件名的默认后缀是( )。
A..cpp B..exe C..obj D..dsp9.若在当前目录下新建一个名为“LX”的工程,则在当前目录下生成的工作区文件名为( )。
A.LX.DSW B.LX.OPT C.LX.DSP D.LX.C10.面可能不影响程序正常运行的是( )。
A.语法错误B.逻辑错误C.警告提示D.算法错误二、填空题1.C程序是由构成的,一个C程序中至少包含。
因此,是C程序的基本单位。
2.C程序注释是由和所界定的文字信息组成的。
3.开发一个C程序要经过编辑、编译、和运行4个步骤。
4.在C语言中,包含头文件的预处理命令以开头。
5.在C语言中,主函数名是。
6.在C语言中,行注释符是。
7.在C语言中,头文件的扩展名是。
8.在Visual C++ 6.0 IDE中,按下Ctrl键的同时按键,可以运行可执行程序文件。
人教版英语八年级上册同步练习:Unit4第1课时
Unit 4What’s the best movie theater?第1课时(Section A 1a-2c)一、用方框中所给词的适当形式填空ticket, carefully, cheap, bad, good1.Who is the best student in your class?2.Of the three boys, Jim writes the most_carefully.3.Let’s go to Dale’s Store. It sells school things cheaply.4.No clothes are worse than those in City Clothes. They are too expensive and ugly.5.I need to buy two tickets. Can you help me?二、根据句意及汉语提示拼写单词6.I went to Tokyo by plane. It was very comfortable (舒适的).7.I like Screen City because it has the biggest screens(银幕).8.Town Cinema is the best movie theater(戏院;剧场) in our town.9.—Can you sing this song(歌) in Chinese, Amy?—Sorry, I can only sing it in English.10.I went shopping w ith my sister yesterday and I chose(选择) a sweater for mys elf. 三、根据汉语提示完成句子11.这家电影院有最好的音响。
T his movie theat er has the best sound.12.影视城等待的时间最短。
五上语文练习与测试答案
五上语文练习与测试答案快速入门本文档为五年级上学期语文练习与测试答案,主要供家长及学生自查使用。
答案均为参考答案,请以老师的讲解为准。
具体使用方法如下:1.在本文档中找到对应的练习或测试题目。
2.阅读题目并思考。
3.比对答案,查看是否正确。
4.如果答案错误,请重新思考并尝试解决。
语文练习答案第一单元一、填空题1.扫把2. 擦桌子3. 菜地4. 元旦5. 冬天二、选择题1. D2. B3. C4. A5. A三、判断题1. F2. T3. F4. T5. F第二单元一、填空题1.一片2. 秋千3. 金果4. 呢子5. 十月二、选择题1. C2. A3. B4. A5. B三、判断题1. F2. T3. F4. F5. T第三单元一、填空题1.春风2. 春雨3. 农历4. 软软的5. 美丽二、选择题1. C2. A3. B4. B5. A三、判断题1. F2. T3. T4. F5. T语文测试答案第一单元测试一、填空题1.卖2. 进3. 工具4. 书写5. 羡慕二、选择题1. C2. A3. C4. A5. D三、简答题1.来源于自然界,人们通过劳动获得食物。
2.筷子和勺子更符合中国人的饮食习惯,有助于保护环境。
3.文字是人类智慧的结晶,对人类社会的发展起了重大作用。
四、作文题(略)第二单元测试一、填空题1.夕阳2. 五彩3. 梧桐4. 独特5. 不留二、选择题1. B2. C3. A4. C5. A三、简答题1.苏轼是宋代著名文学家,其作品深刻描绘了农村、山水等情景,具有高度艺术价值。
2.汉字的演变可以分为古文字、篆书、隶书、楷书四个阶段,每个阶段都有其独特的特点。
3.中秋节是中国传统节日之一,象征团圆和祭拜祖先。
四、作文题(略)总结本文档为五年级上学期语文练习与测试答案,包含了第一单元和第二单元的练习和测试答案。
希望这份答案可以给学生和家长提供帮助,并在备考中做好自我评估。
练习4
第【2】题 】
在计算机运行时, 在计算机运行时,把程序和数据一样存 放在内存中,这是1946年由【C】所领 年由【 】 放在内存中,这是 年由 导的小组正式提出并论证的。 导的小组正式提出并论证的。 A) 图灵 B) 布尔 C) 冯。诺依曼 D) 爱因斯坦
第【3】题 】 计算机的CPU每执行一条【B】,就完成 计算机的 每执行一条【 】 每执行一条 一步基本运算或判断。 一步基本运算或判断。 A) 语句 B) 指令 C) 程序 D) 软件
第【36】题 】 下列关于显示器的说法中, 下列关于显示器的说法中,错误的是 】 【B】。 A) 颜色位数越多越好 B) 显示器越大越好 C) 分辨率越高越好 D) 刷新频率越高越好
填空题
第【1】题 】 计算机由5个组成部分 个组成部分, 计算机由 个组成部分,分别为 。 第【2】题 】 运算的部件。 运算器是执行 和 运算的部件。 第【3】题 】 CPU通过 与外部设备交换信息。 通过 与外部设备交换信息。
第【23】题 】 绘图软件主要用于创建和编辑矢量图文件, 绘图软件主要用于创建和编辑矢量图文件, 下面【 】不是矢量图文件的绘图软件。 下面【C】不是矢量图文件的绘图软件。 A) Illstrator B) AutoCAD C) Windows自带的“画图”程序 自带的“ 自带的 画图” D) CoreDraw
第【28】题 】 在微机系统常用的存储器中, 在微机系统常用的存储器中,读写速度最 快的是【 】 快的是【D】。 A) 硬盘 B) U盘 盘 C) 光盘 D) 内存
第【29】题 】 光盘驱动器通过激光束来读取光盘上的数 据时,光学头与光盘【 】 据时,光学头与光盘【B】。 A) 直接接触 B) 不直接接触 C) 播放 播放VCD时接触 时接触 D) 有时接触有时不接触
竹笛c调指法表
竹笛c调指法表
【实用版】
目录
1.竹笛简介
2.C 调竹笛指法表
3.竹笛指法技巧
4.练习竹笛的建议
正文
【竹笛简介】
竹笛是一种中国传统吹奏乐器,源于古代的笛子。
它以竹子为主要材料制成,具有独特的音色和演奏技巧。
竹笛的音色清脆悠扬,既能演奏古典音乐,也能演奏现代流行音乐,受到广泛的喜爱。
【C 调竹笛指法表】
C 调竹笛的指法表如下:
1.孔位:吹孔
2.孔位:左上角第一个孔
3.孔位:左上角第二个孔
4.孔位:左上角第三个孔
5.孔位:右上角第一个孔
6.孔位:右上角第二个孔
7.孔位:右下角第一个孔
8.孔位:右下角第二个孔
【竹笛指法技巧】
掌握竹笛指法需要反复练习,以下是一些建议:
1.保持手指自然弯曲,不要过度紧张。
2.手指盖住孔时,要保证气息流畅,不要堵塞气孔。
3.初学者可以先练习简单的曲目,逐渐提高难度。
4.在吹奏过程中,保持竹笛的稳定,不要晃动。
5.练习不同节奏和音高的曲目,提高演奏技巧。
【练习竹笛的建议】
学习竹笛需要耐心和毅力,以下是一些建议:
1.选择适合自己的竹笛,考虑竹笛的材质、音色和尺寸。
2.学习基本乐理知识,了解音阶、节奏和音符。
3.寻找专业的竹笛老师,跟随老师学习演奏技巧。
4.保持良好的练习习惯,每天坚持练习一定时间。
5.多参加演出和比赛,积累舞台经验,提高自己的演奏水平。
通过以上介绍,相信你对竹笛有了更深入的了解。
练习竹笛不仅能提高演奏技巧,还能培养气质和耐心。