20150629-AS400测试—答案
2015秋季广州学而思小学期中统测英语答案
【第五届】2015秋季广州学而思小学期中统测(五年级•英语卷)听力脚本及参考答案听力脚本一、Listen and choose the correct picture A,B,or C.1.It’s snowing.It’s so cold outside.2.My father is a teacher,but Tom’s father is a doctor.3.Peter is strong and he likes play football very much.4.My home is far away from school,so I go to school by bus.5.Mary went to America this summer holiday.二、Listen and choose the correct answer A,B,or C.You will hear the story twice.Hello,my name is Helen.My last name is Green.I am a student.I’m13years old.I’m in Class Three,Grade Seven.I have a happy family—father,mother,sister and I.Here is my room.My bed is next to the desk.And my family photo is on the desk.My baseball is on the desk.And I have many books in the bookcase.I like my room.It’s very nice.三、Listen and choose T/F for the sentences below.Write T if the sentence is true or F if false.You will hear the story twice.Miss Yang is only twenty-two.She is tall and thin,and she has long,brown hair.She likes children and her teaching work.From Monday to Friday she stays at school and gives the children classes.She has much work to do,but she often plays games with her students after school.The children like her very much.On Sunday she goes home by bus and stays with her father and mother.Sometimes she goes to see her friends on Sunday.She likes singing.She’s a nice teacher.四、Listen and fill in the blanks.You will hear the story twice.There are many different signs in public.They tell you what to do or what not to do in a place.For example,if you go to see a film,you should enter the cinema at the ENTRANCE and leave through the EXIT.You will also find NO SMOKINGsigns in many cinemas.If you visit a museum,don’t take any photos inside the halls. You are not allowed to.You will find NO PHOTOS signs in many museums.When you drive your car,don’t park in a street with a NO PARKING sign.Make sure you understand the signs and you won’t get into any troubles.参考答案I听力部分1-10CCBAC BCBAB11-15TFFFF16.Enter17.Leave18.Museums19.PARKING20.Cars(注意大小写)II笔试部分基础题21-30DBBAC BADCA31-40CBBAD CBCDB41-50ABACC CABABedy53.doctor54.mountain55.recipe综合能力题56-65CABCA CBDBD66-75BCDBD CABAB76-85BDBCD ACBAA86-90BFGED。
2015全国高考新课标2卷理综试题(附答案解析)
2014年普通高等学校招生全国统一考试(新课标Ⅱ卷)理科综合能力测试化学部分7.下列过程没有发生化学反应的是()A.用活性炭去除冰箱中的异味B.用热碱水清除炊具上残留的油污C.用浸泡过高锰酸钾溶液的硅藻土保鲜水果D.用含硅胶、铁粉的透气小袋与食品一起密封包装8.四联苯的一氯代物有()A.3种B.4种C.5种D.6种9.下列反应中,反应后固体物质增重的是()A.氢气通过灼热的CuO粉末B.二氧化碳通过Na2O2粉末C.铝与Fe2O3发生铝热反应D.将锌粒投入Cu(NO3)2溶液10.下列图示实验正确的是()A.除去粗盐溶液中的不溶物B.碳酸氢钠受热分解C.除去CO气体中的CO2气体D.乙酸乙酯制备演示实验11.一定温度下,下列溶液的离子浓度关系式正确的是()A.pH=5的H2S溶液中,c(H+)=c(HS-)=1×10-5mol•L-1B.pH=a的氨水溶液,稀释10倍后,其pH=b,则a=b+1C.pH=2的H2C2O4溶液与pH=12的NaOH溶液任意比例混合:c(Na+)+c(H+)=c(OH-)+c(HC2O4-)D.pH相同的①CH3COONa②NaHCO3③NaClO三种溶液的c(Na+):①>②>③12.2013年3月我国科学家报道了如图所示的水溶液锂离子电池体系,下列叙述错误的是( )A .a 为电池的正极B .电池充电反应为LiMn 2O 4=Li 1-x Mn 2O x +xLiC .放电时,a 极锂的化合价发生变化D .放电时,溶液中Li +从b 向a 迁移13.室温下,将1mol 的CuSO 4•5H 2O (s )溶于水会使溶液温度降低,热效应为△H 1,将1mol的CuSO 4(s)溶于水会使溶液温度升高,热效应为△H 2,CuSO 4•5H 2O 受热分解的化学方程式为:CuSO 4•5H 2O(s) =====△CuSO 4(s)+5H 2O(l),热效应为△H 3。
AS400技术培训(12)-附录1_AS400系统命令
AS/400基本操作命令 AS/400基本操作命令
AS/400基本操作命令 AS/400基本操作命令
– AS/400的基本操作都是针对目标的操作。 AS/400的基本操作都是针对目标的操作。 AS/400有多种不同类型的目标,针对每种不同 AS/400有多种不同类型的目标,针对每种不同 类型的目标,系统都提供了一组操作命令。 – 一般情况常用的目标有:用户简要表*USRPRF, 一般情况常用的目标有:用户简要表*USRPRF, 库*LIB,文件*FILE(包括物理文件、逻辑文件、 LIB,文件*FILE(包括物理文件、逻辑文件、 显示文件、打印文件等),数据区*DTAARA, 显示文件、打印文件等),数据区*DTAARA, 数据队列*DTAOBJ,程序*PGM等。 数据队列*DTAOBJ,程序*PGM等。
– 修改用户口令CHGPWD 修改用户口令CHGPWD
一般情况下用户没有使用CHGUSRPRF命令的权限, 一般情况下用户没有使用CHGUSRPRF命令的权限, 可以使用该命令更改口令。用户应该定期修改口令。
AS/400基本操作命令 AS/400基本操作命令
– 删除用户DLTUSRPRF 删除用户DLTUSRPRF
AS/400基本操作命令 AS/400基本操作命令
源物理文件操作命令:
– 建立源物理文件CRTSRCPF 建立源物理文件CRTSRCPF
RCDLEN:92。 RCDLEN:92。 IGCDTA: YES,可以双字节的数据。 IGCDTA:*YES,可以双字节的数ID:935。 CCSID:935。
AS/400基本操作命令 AS/400基本操作命令
系统库列表的操作命令:
– 由于应用系统是双字节的,为了保证系统的运 行正确,应该增加系统库QSYS2989到系统库 行正确,应该增加系统库QSYS2989到系统库 列表。 – 增加系统库列表CHGSYSLIBL(*ADD) 增加系统库列表CHGSYSLIBL( ADD) – 除去系统库列表CHGSYSLIBL(*REMOVE) 除去系统库列表CHGSYSLIBL( REMOVE)
2015级七年级下树德实验英语半期考试题英语及答案
Ⅰ. 情景反应。
听句子或问题,选择合适的答语。
句子或对话读一遍。
(5分)1. Can you play the guitar?2. What club do you want to join?3. What is your father doing?4. What time does Mary get dressed?5. How do most Chinese students get to school?6. Why don’t you like ti gers?Ⅱ. 听句子,选出与句子相匹配的图片。
句子读两遍。
(4 分)7. The Parks have to wait because they have only one shower.8. Jack usually has some milk and an egg for breakfast.9. It’s 7:00 pm. Mary is using the computer to do her homework.10. Linda is good at playing the violin.Ⅲ. 听对话,选择正确的答语。
对话读两遍。
(6 分)11. M: What time do you usually take a walk, Tom?W: I usually take a walk at half past seven after dinner.Question: What time does Tom take a walk?12. W: Hi, Bob. What club do you want to join?M: I want to join the soccer club.Question: What club does Bob want to join?13. M; Can you play the violin?W: Sorry, I can’t. But I can play the guitar.Question: What instrument can the girl play?14. W: Where do you have lunch?M: In my school.W: And what time?M: About 12 o’clock at noon.Question: When and where does the boy have lunch?15. W: What do you do after school?M: I either watch TV or play computer games.Question: What does the boy do after school?16. W: Do you get up early, Alan?M: Yeah, I get up at six in the morning and I run. Then I take a shower at 6:30. Question: What time does Alan get up?17. W: Are you doing your homework?M: No, I’m reading the newspaper and I want to do my homework after reading it.W: OK, but please be quick.Question: What is the boy doing now?18. M: Let’s see the pandas first.W: Pandas? I don’t want to see them because they’re lazy.M: Yes. But they’re cute, too.Question: What does the girl think of the pandas?19. W: Hey, Mike. You are late.M: Sorry. But when I leave hom e, I can’t find my bike, so I have to walk to school.W: Don’t be late next time.Question: How does the boy get to school today?20. M: Many elephants in Thailand are in great danger. We should help to save them.W: Yes, but how?M: First, don’t buy things made of ivory. Second, don’t cut down trees. Third, teach more people to love animals.W: You’re right.Question: What can we do to save the elephants?Ⅳ. 听短文,根据短文内容回答问题。
SA认证考试题2 (1) (1)
单选(共14题,共28分)1、 AAC阀是什么的简称 ( 2分)☆考生答案: C2、 对于绕车检查说法正确的有: ( 2分)☆考生答案: B3、 对于咨询环节说法错误的是: ( 2分)☆考生答案: B☆考生答案: A5、 下列哪种情况,室内灯定时器将点亮室内灯约15秒钟。
( 2分)☆考生答案: B6、 以下不属于5个安心的是: ( 2分)☆考生答案: D7、 以下哪一项不是前轮定位参数 ( 2分)☆考生答案: D8、 正时皮带随着使用、硬化,产生裂纹最终断裂时会产生的故障是( ) ( 2分)☆考生答案: D9、 咨询环节不要做的事情有: ( 2分)☆考生答案: B10、 关于预估维修时间的,错误的是: ( 2分)☆考生答案: B11、 "下列零件质量保质期是1年30000公里的是( )( 2014年试题) " ( 2分)☆考生答案: D☆考生答案: C13、 专营店召回活动的第一责任人是( ) ( 2分)☆考生答案: A14、 汽车通过性几何参数包含下面哪些内容 ( 2分)☆考生答案: B1、 SA在与顾客交谈时,不符合谈吐礼仪的有: ( 2分)☆考生答案: C2、 发动机的正常水温应保持在多少度范围内? ( 2分)☆考生答案: A3、 燃油表上“油壶”标示旁的箭头表示什么? ( 2分)☆考生答案: B4、 以下关于客户服务代表与客户交流时的态度的描述中,哪一项是错误的: ( 2分)☆考生答案: A5、 正时皮带随着使用、硬化,产生裂纹最终断裂时会产生的故障是( ) ( 2分)☆考生答案: D6、 我司提供的备件保修期限是( ),以先达到者为限( 2014年试题)。
( 2分)☆考生答案: C7、 以下( )不属于保修费用支付范围( 2014年试题) ( 2分)☆考生答案: D8、 " 以下零件不属于易损耗零件的是( )( 2014年试题) " ( 2分)☆考生答案: A9、 轮胎换位后,为了杜绝故障出现,需要向客户推荐追加什么项目? ( 2分)☆考生答案: A10、 单人标准保养作业时间: ( 2分)☆考生答案: C11、 关于轮胎上的红点描述正确的是: ( 2分)☆考生答案: A12、 下面哪项不属于5S: ( 2分)、 推销发动机清洗剂的目标客户是 ( 1分)☆考生答案: D2、 下列哪一项工作不属于SA的职责范围 ( 1分)☆考生答案: A3、 汽油发动机尾气主要污染物是: ( 1分)☆考生答案: A4、 对于( )情况,客户服务代表应使用《故障问诊告》详细询问客户以了解问题本质(故障现象). ( 1分)☆考生答案: C5、 以下哪一项不属于维修三保:( ) ( 1分)☆考生答案: B6、 东风日产通常备件保修的期限是( ) ( 1分)☆考生答案: C7、 正时皮带随着使用、硬化,产生裂纹最终断裂时会产生的故障是( ) ( 1分)☆考生答案: D8、 下列哪一项属于保修的范围( ) ( 1分)☆考生答案: C9、 为了保证客户根据保养日程在新车免费保养和定期保养时回厂,东风日产乘用车公司要求多长时间为定期提醒客户的周期。
2015年春信息杯上海市中小学生英语听力竞赛试卷(小学组)附答案
2015年春季信息杯上海市中小学生英语听力竞赛试卷(小学组)附答案注意事项:1.请在答题卡上相应的位置写好自己的姓名、学校、年级、准考证号。
2.本试卷共50小题。
竞赛结束时,请将试卷和答题卡一并交回。
3.播放录音时,可先将答案划在试卷上。
录音内容结束后,你将有十分钟的时间将试卷上的答案转涂到答题卡上。
一、听句子,从题中所给的A、B、C、D四个选项中选出你在句中所听到的那个单词。
每个句子朗读一遍。
(共10分,每小题1分)1. A. taught B. bought C. thought D. brought2. A. sleeping B. skiing C. swimming D. skating3. A. older B. warmer C. cooler D. colder4. A. headache B. toothache C. backache D. stomachache5. A. health B. wealth C. healthy D. wealthy6. A. beat B. meat C. treat D. meet7. A. sleepy B. typing C. speeding D. weeping8. A. sour B. shower C. flower D. tower9. A. small B. ask C. manager D. caused10. A. postpone B. photograph C. photocopy D. physics二、听短对话和对话后的问题,从题中所给的A、B、C、D四个选项中选出最佳选项,并将答题卡上的相应位置涂黑。
每段对话和问题朗读一遍。
(共60分,每小题2分)11. A. 2:20. B. 2:40. C. 3:00 D. 3:20.12. A. $3. B. $6. C. $12. D. $15.13. A. 21. B. 23. C. 25. D. 30.14. A. A T-shirt. B. A camera. C. A pen. D. A purse.15. A. Husband and wife. B. Teacher and student.C. Doctor and patient.D. Boss and secretary.16. A. In the library. B. In the restaurant. C. In the park. D. In the hospital.17. A. Have a piano lesson. B. Take photos.C. Watch a drama.D. Go for a swim.18. A. Visit their parents. B. Stay at home. C. Have a barbecue. D. Go shopping.19. A. The traffic is not convenient. B. It’s too close to busy roads.C. Rooms are not big enough.D. There is no swimming pool.20. A. Because he forgot the party. B. Because he couldn’t find a gas station.C. Because he was lost.D. Because he ran out of money.21.A. Husband and wife. B. Brother and sister.C. Teacher and student.D. Clerk and customer.22.A. Sam turned it in. B. He lost his key.C. It was in the lock.D. He got it from Sam.23.A. Coffee. B. A chocolate milk shake.C. Tea.D. A vegetable salad.24. A. Look at the bus schedule. B. Ask the policeman for help.C. Go and ask the staff.D. Buy tickets online.25. A. He is a sales manager in the company.B. He is being interviewed for a job.C. He is talking to the sales manager in the company.D. He is having a business meeting now.26. A. Her new responsibilities in the company. B. Her job prospects.C. C ustomers’ feedback.D. The director’s opinion of her work.27. A. Combine her training with dieting. B. Repeat the training every three days.C. Avoid too much physical training.D. Include weightlifting in the program.28. A. When she will return home. B. Whether she can go by herself.C. Whether she can travel by air.D. When she will completely recover.29. A. Switch off the refrigerator for a while. B. Have someone repair the refrigerator.C. Ask the man to help her.D. Buy a refrigerator of better quality.30. A. It’s good for health to have some ice cream.B. He can’t eat any snacks because of his toothache.C. He doesn’t believe in what the doctor says.D. He can’t eat ice cream though he feels hot.31. A. At a meeting. B. In a restaurant. C. At home. D. On his way.32. A. To try his luck at another restaurant. B. To book a table for Tuesday.C. To book a smaller table.D. To cancel his dinner plans.33. A. A noisy night. B. Life in town. C. A place of living. D. Buying a flat.34. A. Find a player. B. Watch a game. C. Play basketball. D. Join the man.35. A. Saturday. B. Sunday. C. Monday. D. Friday36. A. The cost of fixing the window. B. The difficulty of cleaning it up.C. The possible harm to the people.D. The punishment he will get.37. A. Peter doesn’t like to be bothered. B. The machine was just repaired.C. The man cou ldn’t make any copies.D. The man can learn to use the machine.38. A. The man will buy some envelopes for the woman.B. The man will take the woman to town.C. The woman will have to go and buy some envelopes herself.D. The woman has written several letters today.39. A. Because she is energetic. B. Because the seat is occupied.C. Because she feels tired.D. Because it makes her feel dizzy.40. A. He is surprised that Dan did not fail.B. He is working especially hard on physics.C. He wonders how Dan’s history course went.D. He wants to pass the management course.三、听长对话和短文, 每段对话或短文后有几个小题,从题中所给的A、B、C、D四个选项中选出最佳选项,并将答题卡上的相应位置涂黑。
全新S级产品测试(题库一)
全新S级产品测试(题库一)1.全新S级轿车目前不包含哪些款式?() *A.S350L商务型(正确答案)B.S350L尊享型(正确答案)C.S400L商务型D.S400L豪华型2.全新S级轿车,世界,尽在于心,第一次引用()来定义汽车的豪华? *A.设计的豪华(正确答案)B.传承的豪华(正确答案)C.驾驭的豪华(正确答案)D.数字的豪华(正确答案)3.全新S级轿车大灯说法正确的有?() *A.全系标配几何多光束大灯B.更先进的数字大灯标配在S500L 4MATIC车型上(正确答案)C.更先进的数字大灯只能在S500L 4MATIC车型上选装D.“流星雨”数字大灯在解锁或锁止车辆时,大灯投射特殊的灯光效果(正确答案)4.全新S级轿车的前脸设计说法正确的有?() *A.全新设计的盾形中网,位置下移且面积更大(正确答案)B.S400L商务型可以选装AMG车身风格组件C.在4MATIC车型上配备了AMG车身风格组件(正确答案)D.以上说法都不正确5.全新S级轿车车身设计正确的是?() *A.车门把手采用感应式伸缩车门把手(正确答案)B.S400L未采用感应式伸缩车门把手,不过可以选装C.轴距达到3216mm,相比现款S级轿车轴距增加了51mm(正确答案)D.轴距达到3226mm,相比现款S级轿车轴距增加了61mm6.全新S级轿车尾灯设计正确的有?() *A.尾灯采用分段式设计,解锁时有流水渐次点亮,充满仪式感(正确答案)B.尾灯采用一体式设计,解锁时有流水渐次点亮,充满仪式感(正确答案)C.当刹车灯点亮时,与上方的灯光形成上下对称的效果,仿佛湖面上高楼的倒影(正确答案)D.尾灯依旧采用星辰尾灯的造型7.全新S级轿车内饰设计有着很大的改变,以下正确的有?() *A.方向盘的造型有两种风格(正确答案)B.新增了竹味香氛(正确答案)C.座椅调节按钮变成电容式,能够感知力度,进行快、慢调节(正确答案)D.全系标配12.8英寸OLED大屏,带触控反馈,提升车内科技感(正确答案)8.关于全新S级轿车环境氛围照明说法正确的有?() *A.全新S级轿车全系标配主动式环境氛围灯,营造顶级灯光效果B.S500L 4MATIC车型标配了主动式环境氛围灯(正确答案)C.主动式环境氛围灯一共包含263个LED光源,平均1.6厘米就有一个LED光源(正确答案)D.主动式环境氛围灯的亮度是现款车型的10倍(正确答案)9.以下哪些是主动式环境氛围灯的主题?() *A.雷锋夕照(正确答案)B.平湖秋月(正确答案)C.大漠晚霞D.极夜之光10.全新S级轿车后排的屏幕描述正确的有()?【单选题】 *A.后排一共配备了3块11.6英寸的显示屏(正确答案)B.仅有4座车型才配备7英寸显示屏,5座不配备C.全系都配备了11.6英寸显示屏D.11.6英寸显示屏没有标配在S400L商务型和S450L上(正确答案)11.“芯”之豪华,定义交互新标杆,全新S级轿车显示屏硬件参数正确的有?() *A.320GB固态硬盘(正确答案)B.16GB动态内存(正确答案)C.内存带宽为41790MB/SD.处理能力相比于上一代系统提升了30%(正确答案)12.全新的MBUX系统个人专属账户可以通过哪些方式登录?() *A.语音识别(正确答案)B.指纹识别(正确答案)C.面部识别(正确答案)D.密码(正确答案)13.驾驶辅助信息显示正确的是?() *A.车机系统捕捉信息后,通过系统算法将信息精密筛选、过滤,呈现重要的信息,让驾驶充满安全感。
ROHS2.0、REACH考试试题与答案
ROHS2.0、REACH培训试题姓名 :一、单选题(共 5 小题。
每小题3 分共 15 分)1. ROHS包含哪些元素( B )A:氟、碘、镉、铅、汞、六价铬、溴、多溴二苯醚、溴联苯、多溴联苯醚B:铅、汞、镉、六价铬、多溴联苯、多溴联苯醚、邻苯二甲酸二(2-乙基已 )酯、邻苯二甲酸二丁酯、邻苯二甲酸丁苄酯、邻苯二甲酸二异丁酯C:镉、铅、汞、六价铬、多溴联苯、碘、邻苯二甲酸二(2-乙基已 )酯、邻苯二甲酸二丁酯、邻苯二甲酸丁苄酯、邻苯二甲酸二异丁酯D:氟、铅、汞、六价铬、多溴联苯、多溴二苯醚、邻苯二甲酸二(2-乙基已 )酯、邻苯二甲酸二丁酯、邻苯二甲酸丁苄酯、邻苯二甲酸二异丁酯2. “镉”在均质材料中允许的最大允许浓度值为(A:100PPM B: 1000PPM C: 500PPMA )D: 10000PPM3. 制造商应保留技术文档和欧盟合格声明到电子电气设备投放市场后( D )A:1 年B: 3 年C:5 年D: 10 年-4. RoHS2.0 EU/2015/863 中规定医疗和监控设备强制实施日期是( C )A:2016 年 8 月 1 日B: 2019 年 7 月 22 日C: 2021 年月 22 日D:2020 年8月 1 日5.RoHS指令主要涉及范围 ( D )A.大小家用电器、 IT 和通讯设备;B.消费产品及照明设备、自动售货机、医疗、监控设备;C.电子和电器工具、玩具、休闲和动力设备;D.以上都是。
二、多项选择题:(每空 5 分,共 15 分 )1.关于 RoHS的含盖的危害物质有哪些,以下哪些是正确的:( ABCDE )A. Pb 铅; B. Hg 汞; C. Cd 镉; D.Cr6+六价铬; E. PBB聚溴联苯和PBDE聚溴二苯醚。
2.手工无铅焊接有哪些注意事项?( ABC )A.烙铁头的设定温度范围是 370± 10℃;B.防止烙铁头的氧化;C. 减少烙铁头的温度变化; D. 作业时间限制在 5 秒钟以内3、以下哪些产品属于可以继续(豁免)使用有害物质?(ABCD )A.贴片电阻; B.玻璃二极管 ;C.R232的铜螺母 ;D.大功率三极管的铜合金散热片三.判断题:(共 10 题·每题3 分,共计 30 分)1.RoHS2.0( EU/2015/863 )指令生效日期是2015年 6月24 日;(√)2.ROHS2.0( EU/2015/863 )规定玩具类产品不受RoHS2.0 中邻苯管控要求限制,仍需遵照REACH法规附件XVII 第 51 条邻苯的管控要求。
小学下册第15次英语第六单元测验卷(有答案)
小学下册英语第六单元测验卷(有答案)英语试题一、综合题(本题有50小题,每小题1分,共100分.每小题不选、错误,均不给分)1 The chemical formula for strontium chloride is __________.2 The sun sets and the sky is ______. (beautiful)3 The tortoise carries its house on its _________. (背上)4 古代的________ (textiles) 如羊毛和亚麻是重要的贸易商品。
5 A ____ has a unique pattern and can run very fast.6 Which animal is known for its ability to fly?A. FishB. BirdC. DogD. Cat7 Which season comes after winter?A. FallB. SummerC. SpringD. Rainy8 How many zeros are in one thousand?A. 1B. 2C. 3D. 49 The sun is very ________ today.10 My ________ (兄弟) is learning to ride a bike this summer.11 The ________ was a significant battle during the Napoleonic Wars.12 What is the name of the famous artist known for his surrealistic works?A. Salvador DalíB. Pablo PicassoC. Vincent van GoghD. Claude Monet13 I read ___ (magazines) in the waiting room.14 Light takes time to travel across the vastness of _______.15 The scientist discovered a new _____ (物种).16 What do you call a young female shark?A. PupB. KitC. CalfD. Chick17 What do you call a person who studies stars?A. BiologistB. AstronomerC. ChemistD. Geologist答案:B18 The sun is ______ (bright) in the sky.19 My favorite color is _____ (blue/red).20 What do we call the time of year when flowers bloom?A. WinterB. SpringC. SummerD. Autumn21 What is the name of the largest terrestrial planet?A. EarthB. MarsC. VenusD. Mercury22 The _______ (青蛙) lays eggs in the water.23 His favorite hobby is ________.24 What is the primary function of the roots of a plant?A. Absorb water and nutrientsB. Support the plantC. PhotosynthesisD. Reproduce答案: A25 What do bees make?A. MilkB. HoneyC. BreadD. Jam答案:B26 The bread is _____ (fresh/stale).27 A ____(sustainable lifestyle) minimizes environmental impact.28 I enjoy ___ (going) on adventures.29 The bat comes out at _______ (黄昏).30 A wave's amplitude affects its ______.31 The garden is full of colorful _______ that bloom beautifully.32 What is the currency used in the UK?A. EuroB. DollarC. PoundD. Yen答案:C33 The ______ (小鹿) grazes in the meadow, enjoying the warm sun.34 A _______ is a natural elevation of the earth's surface.35 What is the opposite of high?A. LowB. TallC. DeepD. Short答案:A36 My dog is very _____ (friendly/scary).37 The ____ swims in the ocean and has colorful scales.38 My dad enjoys __________ (写作).39 A ______ (狗) wags its tail when happy.40 My dog likes to dig _______ (洞) in the garden.41 The __________ (旅行计划) includes many destinations.42 What is 5 + 2?A. 6B. 7C. 8D. 9答案: B43 What do you call the season when leaves fall from trees?A. WinterB. SpringC. SummerD. Fall44 A zebra is a type of ______.45 My sister's favorite color is ______ (粉红色). She has many ______ (玩具).46 The horse drinks water from the ______ (水槽). It looks very ______ (口渴).47 Which month has Valentine's Day?A. JanuaryB. FebruaryC. MarchD. April48 The _______ offers a variety of benefits.49 What is the capital of Spain?A. MadridB. BarcelonaC. ValenciaD. Seville答案:A50 We eat _____ (breakfast/lunch) at AM.51 I heard a _______ (小蟋蟀) chirping in the grass last night.52 Many cultures have myths associated with ______.53 We have a ______ (学校) trip next week.54 The ______ (气候) has a big impact on which plants can grow.55 What is the name of the famous tower in Paris?A. Eiffel TowerB. Leaning Tower of PisaC. Big BenD. CN Tower答案:A56 What is the main ingredient in pasta?A. RiceB. WheatC. CornD. Potato答案:B57 The frog jumped into the ________.58 I like to _______ my toys before bed.59 My sister is a great __________. (诗人)60 A frog needs both ______ (水) and land to live.61 A chemical change results in the formation of new ______.62 His favorite sport is ________.63 The sun is ______ (shining).64 What is the capital of the USA?A. LondonB. ParisC. WashingtonD. C.D. Tokyo65 What do you call a collection of short stories?A. AnthologyB. CompilationC. CollectionD. All of the above66 A rainbow is caused by the refraction of ______.67 The __________ was an important period of change in the United States. (冷战)68 The Andromeda galaxy is the nearest ______ to the Milky Way.69 My favorite toy is a ________ (汽车). I like to race it with my friends.70 What is the name of the chemical element with the symbol O?A. OxygenB. GoldC. SilverD. Iron答案: A. Oxygen71 The fish swims in clear ______.72 The process of converting energy from the sun into chemical energy is called ______.73 Where do you usually go to learn?A. ParkB. SchoolC. StoreD. Home74 I love ________ on the beach.75 My dad, ______ (我爸爸), enjoys woodworking and crafts.76 The __________ is a region known for its environmental preservation.77 My cat loves to chase _______ (影子).78 What do we wear on our heads?A. ShoesB. ShirtC. HatD. Pants79 The __________ is a place where fresh and saltwater mix. (河口)80 A kitten loves to explore new ______ (地方).81 The ability of a substance to change state is called _____.82 What is the capital of Fiji?A. SuvaB. LautokaC. NadiD. Labasa答案:A83 My dog barks when he sees a _______ (陌生人).84 What is the name of the famous scientist known for his laws of motion?A. GalileoB. Isaac NewtonC. Albert EinsteinD. Nikola Tesla答案:B85 I want to ___ a new bike. (buy)86 A solution is a homogeneous mixture of a solute and a ______.87 The _____ (金色的鱼) swims gracefully in its aquarium. 金色的鱼在它的水族箱中优雅地游动。
制氢考试(填空题)
制氢考试(填空题)您的姓名: [填空题] *_________________________________1. TSA冷却器位号: [填空题] *_________________________________(答案:E-2302)2. 主热交位号: [填空题] *_________________________________(答案:E-2402)3. 废热锅炉位号: [填空题] *_________________________________(答案:E-2403)4. 洗涤塔位号: [填空题] *_________________________________(答案:C-2101)5. 荒煤气压缩机位号: [填空题] *_________________________________(答案:K-2201A/B/C/D)6. 荒煤气气柜位号: [填空题] *_________________________________(答案:T-2101A/B)7. 解析气气柜位号: [填空题] *_________________________________(答案:T-2102)8. 当被测容器内压力小于外界大气压,所用测压仪表称为: [填空题] * _________________________________(答案:真空表)9. 阀门阀体上有‘50LB’表示: [填空题] *_________________________________(答案:公称压力)10. 除油剂以()作为载体添加多种活性组分 [填空题] *_________________________________(答案:优质硅酸盐)11. 电加热器为立式结构,由加热区、()、隔热层、防爆接线盒、压力容器。
[填空题] *_________________________________(答案:散热区)12. 离心泵打不上液(或压)的原因是:入口管路堵塞、()、泵内有气体、未灌泵、可吸入液面过低、泵反转。
四川省巴中市电梯作业电梯电气安装维修(T2)测试卷(附答案)
四川省巴中市电梯作业电梯电气安装维修(T2)测试卷(附答案)一、单选题(50题)1.电焊机一次线长度不应超过( )m。
应用专用的绝缘良好的电缆焊把线。
A.6B.8C.5D.102.语言处理程序是将汇编语言和各种高级语言编写的程序翻译成计算机能识别和执行的机器代码。
()A.正确;B.错误3.电梯的候梯厅深度要考虑不乘电梯的人员在穿越层站时,对交通过道的要求。
()A.是B.否4.钢丝绳末端不应固定在()上。
A.轿厢B.对重(或平衡重)C.系结钢丝绳固定部件的悬挂部位D.任意物体或部位5.井道应当是垂直的,但也允许有一定的偏差,当高度为60m的井道,其允许偏差为()。
A.0,+25mmB.0,+35mmC.0,+50mmD.0,+60mm6.《特种设备安全法》规定:所有特种设备的生产、()、使用、检验检测和特种设备安全的监督管理,适用本法。
A.设计B.制造C.经营7.《特种设备作业人员证》遗失或者损毁的,持证人员应当及时报告发证部门,并在()予以公告,查证属实的,由发证部门补发证。
A.发证当地媒体B.寻物启示C.本单位D.从业当地媒体8.电梯设计必须符合相应的标准和安全技术要求。
()A.正确;B.错误9.刀开关是低压配电装置中结构最简单且应用最广泛的电器,它的作用主要是()。
A.通断额定电流B.隔离电源C.切断短路电流D.切断过负荷电流10.()的作用是使绳与绳轮之间具有足够的压紧力,使绳轮能准确反映电梯运行速度。
A.限速器;B.限速器超速开关;C.限速器绳;D.张紧装置11.当轿厢在开锁区域内时,门锁方能打开,使开门机动作,驱动轿门、层门开启。
()A.是B.否12.齿轮齿条式电梯靠齿轮在齿条上的爬行来驱动轿厢,一般为( )用电梯。
A.住宅B.乘客C.病床D.建筑工程13.()灭火器是利用其灭火剂透明无色、不导电,而常用于电气设备的灭火。
A.二氧化碳B.一氧化碳C.氮气14.盘车手轮应漆成()色,而且应是边缘光滑的圆盘。
(2021年)浙江省台州市电梯作业电梯电气安装维修(T2)测试卷(含答案)
(2021年)浙江省台州市电梯作业电梯电气安装维修(T2)测试卷(含答案) 学校:________ 班级:________ 姓名:________ 考号:________一、单选题(10题)1.电梯在自动正常运行状态,在具有指令或召唤信号登记后,给出运行方向且自动关门后不能启动的可能原因是:()。
A.安全回路开关故障B.脉冲编码器故障C.门锁开关故障D.超载开关故障2.关于自动扶梯的紧急制动器的说法不正确的是()。
A.自动扶梯的速度超过额定速度的40%时,起作用B.梯路突然改变其规定的运行方向时,起作用C.对驱动主轴起作用D.对驱动机组起作用3.位于两端出入口处,为方便乘客的过渡并与梯级、踏板或胶带啮含的部件,称()。
A.扶手带B.梳齿板C.防夹装置D.防撞装置4.如果触电者心跳停止,呼吸尚存,应采用的急救措施是()。
A.打强心针B.仰卧压胸法C.人工呼吸法D.胸外心脏挤压法5.轿厢两个导靴要求横向在同一( )线上,纵向两个导靴在同一垂直线上。
A.倾斜B.误差C.水平D.垂直6.轿厢地坎与层门地坎的水平距离最大不得大于mm。
( )A.20B.35C.40D.807.关于绝缘体下面说法正确的是。
()A.不容易让电流通过的物体B.在任何情况下都不能导电C.一般电阻大于十的九次方欧姆平毫每米D.电阻无限大8.电梯供电电压对于额定电压的波动应在±( )%的范围内。
A.3B.5C.7D.89.《特种设备安全法》规定:有关部门和单位应当依照法律、行政法规的规定,追究()的责任。
A.事故责任单位和人员B.事故发生单位和人员C.事故涉及单位和人员10.电磁制动器抱闸皮与制动器轮的表面间隙为0.5?( )mm。
A.1.1B.1.2C.0.7D.0.8二、判断题(10题)11.调整电梯轿厢架拉杆,使轿厢底盘的水平度≤2/1000, 并将拉杆用单螺母锁紧固定。
( )A.是B.否12.液压管路承受的压力应是满负荷的3~4倍。
【2023年】陕西省延安市电梯作业电梯电气安装维修(T2)测试卷(含答案)
【2023年】陕西省延安市电梯作业电梯电气安装维修(T2)测试卷(含答案) 学校:________ 班级:________ 姓名:________ 考号:________一、单选题(10题)1.自重力向下锁紧式(下钩式)门锁,是国标中规定使用的门锁。
()A.正确;B.错误2.自动人行道的最大额定速度不应超过()m/s。
A.0.4B.0.5C.0.75D.0.93.特种设备一旦发生事故可能会引起灾难性的后果。
()A.正确;B.错误4.集体备用的劳防用品应该( )。
A.集体保管B.专人保管C.个人保管5.轿厢安全钳应装一个电气装置,其作用是( )。
A.操纵安全钳B.与限速器相通C.在安全钳动作之前或同时切断电源D.测量动作速度6.特种设备使用单位未对其使用的特种设备进行经常性维护保养和定期自行检查,或者未对其使用的特种设备的安全附件、安全保护装置进行定期校验、检修,并作出记录的,责令限期改正逾期未改正的,责令停止使用有关特种设备,处()罚款。
A.一万元以上十万元以下B.二万元以上二十万元以下C.五万元以上五十万元以下7.在电压恒定的电路中,当电阻值增大时()。
A.电流增大B.功率增大C.电流减小D.电流不变8.工作区域任何存在潜在危险之处()安置醒目的警示标志。
A.要求B.必须C.原则上允许D.原则上要求或可以9.极限开关应在轿厢或对重(如有)接触缓冲器之(()起作用,并在缓冲器被压缩期间保持其动作状态。
A.前;B.后;C.间10.自动扶梯提升高度至少超过()m以上型的自动扶梯都应设置附加制动器。
A.3B.6C.20D.30二、判断题(10题)11.在夏天安装电梯,为避免中署,可以适当穿汗衫和短裤。
()A.是B.否12.在井道顶层或基站设置校正装置,是对微机计数脉冲校正,使平层精度或换速点准确。
( )A.是B.否13.3个滚轮导靴代替了滑动导靴的3个工作面,实现以滚轮摩擦代替滑动摩擦。
( )A.是B.否14.电梯安装时,如有火焰作业必须与易爆物品保持l0m以上距离。
阿特斯测试考试题及答案
阿特斯测试考试题及答案一、单项选择题(每题2分,共20分)1. 阿特斯公司的主要业务领域是()。
A. 金融投资B. 房地产开发C. 信息技术D. 能源开发答案:D2. 阿特斯公司在全球太阳能行业中的排名是()。
A. 第一位B. 第二位C. 第三位D. 第四位答案:C3. 阿特斯公司的核心产品包括()。
A. 太阳能电池板B. 风力发电机C. 核能设备D. 水力发电设备答案:A4. 阿特斯公司在以下哪个国家设有研发中心?()A. 美国B. 德国C. 中国D. 所有以上选项答案:D5. 阿特斯公司的产品主要应用于以下哪个领域?()A. 家庭用电B. 商业用电C. 工业用电D. 所有以上选项答案:D6. 阿特斯公司在可持续发展方面的主要目标是()。
A. 增加利润B. 减少碳排放C. 提高市场份额D. 扩大生产规模答案:B7. 阿特斯公司在以下哪个领域拥有专利技术?()A. 太阳能电池板制造B. 电动汽车制造C. 飞机制造D. 船舶制造答案:A8. 阿特斯公司的产品通过了以下哪个国际认证?()A. ISO 9001B. ISO 14001C. ISO 27001D. 所有以上选项答案:D9. 阿特斯公司在全球拥有多少家制造工厂?()A. 5家B. 10家C. 15家答案:C10. 阿特斯公司的主要市场是()。
A. 北美B. 欧洲C. 亚洲D. 全球答案:D二、多项选择题(每题3分,共15分)11. 阿特斯公司在以下哪些国家设有分支机构?()A. 中国B. 美国C. 加拿大答案:ABCD12. 阿特斯公司的业务范围包括以下哪些方面?()A. 太阳能电池板制造B. 太阳能电站建设C. 太阳能产品分销D. 太阳能技术研发答案:ABCD13. 阿特斯公司的产品优势包括以下哪些方面?()A. 高效率B. 低成本C. 长寿命D. 环保答案:ABCD14. 阿特斯公司在以下哪些方面进行了技术创新?()A. 提高太阳能电池板的转换效率B. 降低太阳能电池板的生产成本C. 优化太阳能电站的布局设计D. 提升太阳能产品的安全性答案:ABCD15. 阿特斯公司在以下哪些方面承担了社会责任?()A. 减少环境污染B. 提供清洁能源C. 创造就业机会D. 支持社区发展答案:ABCD三、判断题(每题1分,共10分)16. 阿特斯公司是全球最大的太阳能电池板制造商。
西安2024年06版小学六年级下册G卷英语全练全测(含答案)
西安2024年06版小学六年级下册英语全练全测(含答案)考试时间:100分钟(总分:110)A卷考试人:_________题号一二三四五总分得分一、综合题(共计100题)1、填空题:My _____ (堂妹) is very talented.2、听力题:The stars are ___ (twinkling/shining).3、填空题:The __________ (历史的积累) enriches our culture.4、填空题:I like to _______ (读新闻) online.5、填空题:A ________ (植物保护意识) fosters community involvement.6、填空题:My friend has a ___ (小宠物), which is a cute rabbit.7、填空题:The capital of Togo is ________ (多哥的首都是________).8、填空题:My sister is a great __________. (诗人)9、听力题:It is _____ outside today. (cold/hot/warm)10、What is the capital of Iceland?a. Reykjavikb. Akureyric. Seydisfjordurd. Keflavik答案:a11、填空题:I can ______ (为未来做准备) with education.12、听力题:A _______ can help to measure the speed of sound in various conditions.13、What is 12 4?A. 6B. 7C. 8D. 9答案: C14、What do you call a story with a moral lesson?A. FableB. NovelC. MythD. Legend15、听力题:A chemical change can be identified by a _______ in temperature.16、听力题:The _____ was first explored by humans in the s.17、填空题:The bird can ______ in the sky.18、填空题:The _____ (农业教育) promotes sustainable practices.19、填空题:I can see the __________ coming from the east. (风暴)20、What is the name of the tool used to measure length?A. ScaleB. RulerC. TapeD. Protractor答案: B21、听力题:The _____ (snail) moves slowly.22、填空题:The ________ was a major event in the history of the United States.23、填空题:I have many ______ in my class.24、听力题:A solution with a pH of is considered ______.25、填空题:A rabbit has powerful ______ (后腿) for jumping.26、听力题:Glaciers are large __________ of ice that move slowly.27、 Fire of London occurred in ______ (1666年). 填空题:The Grea28、填空题:I want to learn to ________ (制作视频) for fun.29、听力题:The ______ helps us understand the world.30、听力题:An underwater ______ can cause large waves known as tsunamis.31、填空题:The __________ (历史的反馈) informs future studies.32、填空题:We visit the ______ (文化中心) for events.33、听力题:The Amazon rainforest is primarily found in __________.34、填空题:I want to grow _____ (蔬菜) this year.35、ts can grow high in _____ (山上). 填空题:Some pla36、What is the name of the famous American author known for writing "The Adventures of Huckleberry Finn"?A. Mark TwainB. Ernest HemingwayC. F. Scott FitzgeraldD. John Steinbeck答案:A37、What is the capital of Vanuatu?a. Port Vilab. Luganvillec. Tannad. Espiritu Santo答案:a38、填空题:Chemical bonds hold __________ (原子) together in molecules.39、填空题:The __________ is the capital city of Canada. (渥太华)40、What is the capital of Sweden?A. StockholmB. OsloC. HelsinkiD. Reykjavik答案:A41、选择题:How many legs does a spider have?A. SixB. EightC. TenD. Twelve42、听力题:I _____ (love/hate) homework.43、听力题:We will go to the ___. (concert)44、听力题:We are going to ___ a festival. (have)45、听力填空题:I think being kind is important. I show kindness by __________.46、听力题:The process of neutralization involves an acid and a ______.A ______ is a type of fish that can glow.48、填空题:My favorite toy is the one that makes me think. (玩具名称)49、What is the capital of Kenya?A. NairobiB. MombasaC. KisumuD. Nakuru50、What do we call a person who studies the effects of population growth?A. DemographerB. SociologistC. AnthropologistD. Economist答案: A51、听力题:A ______ is a mixture where particles are evenly distributed.52、填空题:The __________ is a famous national park in Wyoming. (黄石国家公园)53、Which instrument has keys and is played by pressing?A. GuitarB. DrumsC. PianoD. Violin答案:C54、听力题:A sound that is too high or too low may not be ______.55、What do we call a story that explains how something came to be?A. LegendB. MythC. FableD. Tale答案: B56、填空题:My favorite activity is ______ (骑自行车).A chemical change results in new ______ being formed.58、听力题:The girl loves to ________.59、填空题:Certain plants can adapt to ______ environments over time. (某些植物可以随着时间的推移适应极端环境。
上海上海大学附属学校人教版初中英语八年级下册Starter Unit 7经典测试题(答案解析)
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.—Look at this picture taken on December 19th, 2016. It shows the snow covering part of the Sahara Desert.—________. It last snowed there 38 years ago.A.It doesn’t matter B.That’s a pityC.That’s amazing D.Hope things work out2.-- ?--She is a zoo keeper.A.What is she B.Where is she C.How is she D.Why is she 3.—Do you mind my sitting here?—__________. It’s Jim’s seat and he will come back soon.A.Better not B.Yes, please C.No,you can’t D.Of course not. 4.It took us about ________ to fly to Hong Kong.A.three and a half hour B.three and a half hours C.B&D D.three hours and a half5.--Why are the rare animals becoming fewer and fewer?--Because of terrible living .People cut down too many forests.A.conditions B.ways C.styles D.hobbies6.--I haven’t seen Lucy for days.What’s she doing recently?--She is her English test next week.A.prepare at B.preparing for C.prepared for D.preparing with7.People should stop rubbish the sea.A.to put;into B.putting;into C.putting;on D.put;on8.(2016•德州)As the ___________ girl in our class,Mary was chosen to take part in the running race.A.kindest B.fastest C.strictest D.cleverest9.I don’t know _____ I am free this afternoon.A.that B.if C.what D.which 10.—Can I use your bathroom?—______A.That's amazing! B.Go away!C.Really? D.Yes,feel free.11.The supermarket was the first one ________ jobs for the deaf.A.providing B.to provide C.losing D.to lose12.you study, grades you will get .A.Harder; better B.The harder; the betterC.hard; good D.The harder; better13.As time goes by, you will get a(n) ________ better understanding of the job. A.pretty B.quite C.much D.only14.________ I know, Jack's got twin sisters.A.As far as B.As long as C.As soon as 15.(2017,黔东南) Kaili is one of the most beautiful ________ in Guizhou.A.place B.cities C.town16.The mountain is so high that it's difficult for us to________ air on the top of it. A.take up B.take down C.take in17.Lake Qinghai is larger than ________ salt lake in China with an area of 4,583 km. A.another B.any other C.the other18.________ he practices,________ he does.A.Much; better B.The much; the better C.The more; the better 19.—I haven't seen Lucy for days.What's she doing recently?—She is ________ her English test next week.A.prepare at B.preparing for C.prepared for 20.The classroom is ______.A.ten meters long B.ten meter long C.ten-meter long D.ten-meter long 21.— Whose book is this?— It ______ belong to Lucy. Her name is on it.A.must B.shall C.could D.can 22.The United Kingdom ______ Northern Ireland and Wales.A.include B.includingC.includes D.included23.______, a baby is about 50cm long.A.At the birth B.At birthC.On the birthday D.On birth24.There were many people ________in the factory when I passed.A.work B.works C.to work D.working 25.The Sahara is about 29 ________the Taklamakan,the largest desert in China. A.times as large as B.times as larger asC.time as larger as D.times larger26.There is no need to wear ________ coats, for there is warm sunshine outside. A.thick B.expensive C.traditional D.broken【参考答案】一、选择题1.C2.A 3.A 4.C5.A 6.B7.B8.B9.B 10.D 11.B 12.B 13.C 14.A 15.B 16.C 17.B 18.C 19.B 20.A 21.A 22.C 23.B 24.D26.A【参考解析】一、选择题1.C解析:C【解析】句意:——看这张2016年12月19日拍摄的照片。
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AS400基础考核--答案
一、填空题(每小题2分,共20分)
1、编译RPG和RPGLE的CL命令分别是:CRTRPGPGM和CRTBNDRPG。
2、编译PF和LF的CL命令分别CRTPF和CRTLF 。
3、编译CLP程序的CL命令是:CRTCLPGM。
4、创建源物理文件的CL命令是:CRTSRCPF。
5、%MONTHS是为指定日期加上或减去给定月份数,现执行以下语句:
D’2011-05-31’+%MONTHS(1), 运行结果是:2011-6-30。
6、查看假脱机文件的命令是:WRKSPLF。
7、CL中日期格式转换命令是:CVTDAT。
8、复写物理文件命令是:OVRDBF。
9、为物理文件添加日志的命令是:STRJRNPF;启用日志
的命令是:STRCMTCTL。
10、修改编译时的库列表的命令是:EDTLIBL ;常用缩
写是:EL 。
二、ILE操作码(每小题2分,共40分)
1、日期时间相加ADDUR
2、定位操作--小于语法SETLL
3、监控程序信息MONITOR
4、将一个字符串中指定的字符,更换成另外的字符XLATE
5、修改记录UPDATE
6、取当前系统时间TIME
7、打开指示器SETON
8、数学运算-乘: MULT
9、数组赋值MOVEA
10、执行子过程EXSR
11、屏幕显示DSPLY
12、根据已知字段来定义新字段DEFINE
13、删除当前记录DELETE
14、清除内容CLEAR
15、检查对象变量中的字符CHECK
16、按键值对文件记录进行查询定位CHAIN
17、字符连接CAT
18、带条件的调用子过程CASXX
19、数学运算-取余MVR
20、日期相减SUBDUR
三、常用函数解释(每小题2分,共20分)
1、%CHAR() 转换为字符数据
2、%ERROR() 返回错误状态
3、%DEC() 转换为压缩十进制格式
4、%EDITC() 使用编辑代码编辑值
5、%FOUND() 返回查找条件
6、%XLATE() 字符转换
7、%SUBST() 截取字符串
8、%TRIMR() 剪切尾部空格
9、%CHECKR() 逆向检查
10、%ADDR() 获取变量的地址
四、SQL(每小题2分,共10分)
根据以下四张表:
Student(S#,Sname,Sage,Ssex) 学生表
Course(C#,Cname,T#) 课程表
SC(S#,C#,score) 成绩表
Teacher(T#,Tname) 教师表
完成以下SQL。
(注:学生表的唯一键值是S#)
1、查询“001”课程比“002”课程成绩高的所有学生的学号;
select a.S#
select a.S#
from (select s#,sc ore from SC where C#=’001′) a,
(select s#,score from SC where C#=’002′) b
where a.score>b.score and a.s#=b.s#;
2、查询平均成绩大于60分的同学的学号和平均成绩;
select S#,avg(score)
from sc
group by S# having avg(score) >60;
3、查询姓“李”的老师的个数;
select count(distinct(Tname))
from Teacher
where Tname like ‘李%’;
4、查询没学过“叶平”老师课的同学的学号、姓名;
select Student.S#,Student.Sname
from Student
where S# not in (select distinct( SC.S#) from SC,Course,Teacher where SC.C#=Course.C# and Teacher.T#=Course.T# and Teacher.Tname=’叶平’);
5、删除学习“叶平”老师课的SC表记录;
Delete SC
from course ,Teacher
where Course.C#=SC.C# and Course.T#= Teacher.T# and Tname='叶平';
五、问答(3+3+4,共10分)
1、SETLL与SETGT的区别(附加画图说明)。
2、详细说明Read、Reade、ReadPE、Chain的区别。
3、如何实现事务处理(分步说明)。