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( ) 3. You can go to Zhongshan Park on foot. A. walk to Zhongshan Park B. go to Zhongshan Park by foot C. go to Zhongshan Park by walk ( ) 4. Rose and Jane are in the same class. A. classmates B. schoolmates C. deskmates ( ) 5. The girl in white is Jane. A. has a white dress B. with a white dress C. wearing a white dress ( ) 6. It's ten five. A. ten to five B. ten past five C. five past ten ( ) 7. Where are you from? A. are you coming B. do you come from C. do you from ( ) 8. --- I'm hungry. Can I eat some bread? --- Certainly. A. That's great. B. Sure. C. Yes, I can. ( ) 9. The boys of our school like to play football. A. like playing B. to like play C. like play ( ) 10. They had a good time at the party last Sunday. A. had many time B. enjoyed themselves C. had many friends with them 六、选择填空。(12分) ( ) 1. My sister can _____ well. She's a good ______. A. singing; singer B. sing; singer C. sing; singing ( ) 2. ______ chase the ducks! A. Can't B. don't C. Don't ( ) 3. ______, the music is nice! A. Look B. Listen C. Hear ( ) 4. What do sheep like? A. They like corn. B. They like grass. C. It likes grass. ( ) 5. - Are you _______? --- Yes, we are. A. postman B. postmen C. the postman ( ) 6. It was ______ egg. Now it is a caterpillar. A. a B. an C. the ( ) 7. ---- Would you like some milk? ---- _______. A. Yes, I like. B. No, I don't C. No, thanks ( ) 8. ---- Excuse me, where's Red Flag School? A. by B. taking C. take ( ) 9. It's late. Let's ______. A. go to home B. go home C. go to the home ( ) 10. ---- Whose desk is this? --- It's _________. A. Tim's and Jim's B. Tim and Jim's C. Tim and Jim ( ) 11. We played ______ at nine o'clock in a music lesson. A. drum B. drums C. the drum ( ) 12. We can't eat _____ drink in class. A. and B. but C. or 七、根据要求改写句子。(8分) 1. John has lunch at school every day. (对画线部分提问) ___________________________________________________________________ 2. Lingling gets up at six o'clock. (现在进行时) ___________________________________________________________________ 3. I like the small apple. (否定句) ___________________________________________________________________ 4. That tall man is Mr White. (对画线部分提问) ___________________________________________________________________ 5. What time do you go to school? (一般过去时) ___________________________________________________________________ 6. It's warm in spring and cool in autumn in Shanghai. (对画线部分提问) ___________________________________________________________________ 7. I read English every day. (对画线部分提问) ___________________________________________________________________ 8. Mr Black can speak very good Chinese. (对画线部分提问) ___________________________________________________________________ 八、阅读理解。(15分) A.阅读短文后做出判断,符合短文意思用"T"表示,不符合用"F"表示。(5分) What Am I? I was born (出生)in a small river. When I was young, the river was my home. I did not know my father or mother, but I had many, many brothers and sisters. I swam and played with them. At that time I did not look like my father or mother. I had no legs, but I had a long tail(尾巴).So I looked like a fish. Then my tail became shorter and shorter(变得越来越越短). And now I have four legs and a very short tail. I know I'm going to have no tail at all soon(不久). I'm going to be like my father and mother. Then I'm going to jump out of the water. I'm going to live on the land(陆地)and in the water too. I'm going to eat a lot of insects(昆虫)--- a lot of bad insects. What an I? ( ) 1. The river was my home when I was born. ( ) 2. I had no father or mother, but I had many brothers and sisters. ( ) 3. I was a fish when I was young. ( ) 4. I'm going to look like my father and mother. ( ) 5. I'm an insect. B.根据短文内容,回答问题。(10分) The Crow (乌鸦)and the Fox A crow is sitting in a big tree. She has a big piece of meat in her mouth. "My babies will have a nice breakfast," she thinks. An old fox is looking for (寻找)his breakfast. He sees the crow and the meat. "How can I get that piece of meat?" he thinks. "Good morning, Mrs Crow," says the fox very sweetly. "How are you?", But the crow doesn't say a word. "You are very nice babies, Mrs Crow," says the fox very sweetly. "How are they? May I see them?" Still(仍然), the crow doesn't say a word. "You are very beautiful, Mrs Crow. And you have a beautiful voice(声音)too, " says the fox very, very sweetly. "Will you sing a song for me?" Mrs Crow thinks, "How nice Mr Fox is! I must sing him a song." So she opens her mouth, "Caw! Caw! (乌鸦的叫声)" Down drops (掉下)the meat into the fox's mouth. Questions: 1. What does the crow have in her mouth? _____________________________________________________________ 2. What is the old fox looking for? _____________________________________________________________ 3. The fox says "Good morning" to the crow. Does the crow say anything? _____________________________________________________________ 4. Why does the crow open her mouth? _____________________________________________________________ 5. Who gets the meat at last(最后)? ______________________________________________________________ 九、读短文,用五个英语句子将短文写完。(5分) Today is Children's Day. It's sunny. The pupils are having an English evening on the playground

小升初英语数学题

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月儿丸丸

2013小升初语文全真模拟试题一、常识填空(共9分)1、回忆你学过的古诗,选出能表现下列季节特点的句子各一句。(4分)春:夏:秋:冬:2、目前,中国正在为举办()年的夏季奥运会而积极努力。中国体育健儿在奥运会上勇于拼搏,硕果累累。你能写出四位中国奥运会冠军和他(她)从事的项目吗?(4分)3、在日常生活中,难免遇到一些紧急情况。这时,我们通过拨打电话、向有关部门求助,所以我们应记住一些紧急求助的电话号码。其中火警,治安报警,交通事故,医疗急救的电话号码排序正确的是()(1分)A、119122110120B、122110120119C、119ll0122120D、119110120122二、基础知识。(29份)1、按照汉语拼音字母表顺序,先将下列字母重新排列,再写出相应的大写字母。(3分)eqIdrjln大写字母:小写字母:2、看拼音,在方格里写字,要注意把字写规范、匀称。(6分)3、在括号里填上恰当的动词,不能重复。(3分)(1)()一趟(2)()一遍(3)()一把(4)()一眼(5)()一句(6)()一遭4、先补充成语,再按要求分类。(10分)神机()算自私自()斗志()扬阴()诡计滔滔不()()头丧气舍()为人口若()河(1)将上述成语按褒义和贬义分类。①褒义词:②贬义词:(2)从上述成语中找出两对近义词写在下面。()——()()——()(3)从上述成语中找出两对反义词写在下面()——()()——()5、按要求写句子。(7分)(1)写一个表现母爱的句子,用上“无微不至”。(2)请以“日出”为内容,写一个比喻句和拟人句。比喻句:拟人句:6、按要求写句子(各一句)。(1)表示学习方面的谚语:(2)你最喜欢的一句歇后语:(3)你最喜欢的一句名言警句:(4)你最喜欢的一句古诗:7、在括号里填上合适的字,从左到右组成四个词。(5分)三、语言实践。(共10分)1、相传蜀汉大将关羽写过《戒子书》,书中有这样一句话:“读书好,好读书,读好书。”想一想这句话中的三个分句各表达了什么意思。(3分)(l)“读书好”的意思:(2)“好读书”的意思:(3)“读好书”的意思:2、有些句子由于离开了一定的语言环境,或停顿的地方不同,可以表示不同的意思,请你写出下面这句话的三种不同意思。(3分)A:我扶你走吧。B:C:3、如果你或者朋友违约了,你会怎样向朋友说?或者听到朋友的解释你会怎么说?设计一段你和朋友针对“违约了”的对话,对话不少于五次。(4分)四、阅读。(16分)阅读短文完成下列各题。探望我们班里的男同学很封建,一向认为“男女奶别”,老不愿意搭理我们女生,连那几个男同学干部见了我们也常常避得老远。我常想找个机会让我们的思想来个chèdǐ()的转变。||机会终于来了,有位“封建”的小队长生病了。这回我可要去破破他的规矩。那天下午,我收拾起书包、拔腿就向医院跑去。可到病房前线我yóuyù()了,一个女同学去探望男同学,真有些不好意呀!但是“要下决心改变男同学的思想”这个念头使我zēngtiān()了力量,我迈上一大步,推开了房门。他的神情真使我好笑:只见他抬起头看见了我,嘴巴张得老大老大的,眼睛瞪得滚圆滚圆的。我笑着上前,说:“怎么?为欢迎我来吗?”他半晌才醒悟过来,低着脑袋,像蚊子叫似的低声说:“啊,欢迎欢迎,请坐请坐。”我笑着问了他的病情,告诉他学校里的一些情况,谈得还挺投机呢。最后对他说:“你一定感到奇怪,我怎么会来看你呢?我就是想破破你们不理女同学的规矩,今天我们的谈话不是很好吗?”他摸了摸脑袋瓜,不好意思地笑了。||第二天,老师用激动的语气向大家讲述了这件事,末了说:“沈敏这件事做得真有意义,你们说对不对?”同学们的眼光向我射来,这眼光不再包含着嘲笑、惊异,而是包含着赞赏和钦佩。||1、在文中拼音后面的括号里写上词语。(3分)2、写出加点字(词)的同义字:(2.5分)搭理()半晌()挺()末了()包含()3、按分好的段落,写出段落大意。(3分)4、文中画“”的句子,在全文中的作用是。(l分)5、联系上下文体会表现“封建”小队长神情语句的含义。(2分)(l)只见他抬头看见了我,嘴巴张得老大老大的,眼睛瞪得滚圆滚圆的。(2)他半晌才醒悟过来,低着脑袋,像蚊子叫似的低声说:“啊,欢迎欢迎,请坐请坐。”6、改变句子:(1)今天我们的谈话不是很好吗?(不带问号的句子)。(2分)(2)沈敏这件事做得真有意义。(有问句的句子)。(2分)7、这篇文章主要写了事,反映了。(2.5分)五、写作(共30分)1、在原文中修改下面一段话中的错误。(5分)一个冬天的傍晚,大雪刚停,孙康站在门口,觉得雪地亮堂堂的。他想,雪地里这样亮,也许可能看清书上的字呢?他拿出一本书,映着雪一看,居然看得清。他故不得天冷,就蹲在雪地上看起书来。2、以《如果我有钱了》为题,联系生活实际或展开想象写一篇文章,体裁不限。 2013小升初数学全真模拟试题一、填空题(20分)1.二亿六千零四万八千写作(),改写成用“万”作单位的数是()万。2、,0.76和68%这三个数中最大的数是(),最小的数是()。3.能同时被2、3、5整除的最大的三位数是()。4.某班男生和女生人数的比是4:5,则男生占全班人数的(),女生占全班人数的()。5.爸爸说:“我的年龄比小明的4倍多3。”小明说:“我今年a岁。”用含有字母的式子表示爸爸的年龄,写作();如果小明今年8岁,那么爸爸今年()岁。6.一个数除以6或8都余2,这个数最小是();一个数去除160余4,去除240余6,这个数最大是()。7.÷()=()÷60=2:5=()%=()成。8.在3.014,3,314%,3.1和3.中,最大的数是(),最小的数是()。9.一个圆的周长是12.56厘米,它的面积是()平方厘米。10.如果a=(c≠0),那么()一定时,()和()成反比例;()一定时,()和()成正比例。二、选择题(将正确答案的序号填入括号内)(5分)1.一个周长是l的半圆,它的半径是()A.l÷2B.l÷C.l÷(+2)D.l÷(+1)2.的值是一个()。A.有限小数B.循环小数C.无限不循环小数3.一台电冰箱的原价是2400元,现在按七折出售,求现价多少元?列式是()。A.2400÷70%B.2400×70%C.2400×(1-70%)4.在下列年份中,()是闰年。A.1990年B.1994年C.2000年5.下列各式中,a和b成反比例的是()。A.a×=1B.a×8=C.9a=6aD.三.判断题(对的在括号内打“√”,错的打“×”)(5分)1.6千克:7千克的比值是千克。()2.时间一定,路程和速度成正比例。()3.假分数一定比真分数大。()4.一个分数的分母含有质因数2或5,这个数一定能化成有限小数。()5.如果一个圆锥的体积是4立方分米,那么与它等底等高的圆柱的体积是12立方分米。()四.计算题(35分)。1.直接写出得数(5分)127+38=8.8÷0.2=2-1=×1=1÷7+=1-1×=+=1.02-0.43=÷25%×=×2÷×2=2.简算(6分)①9-(3+0.4)②1.8×+2.2×25%③3.脱式计算(12分)①6.25-40÷16×2.5②+(4-3)÷③(8-10.5×)÷4④2÷[5-4.5×(20%+)]4、解方程(6分)7.5:x=24:123x-6=8.255、列式计算(6分)(1)8与4的差除以2,得多少?(2)15的比一个数的4倍少12,这个数是多少?五、先看统计图,再提出问题(5分)某工厂2001年1——4季度产值统计图问题1:列式:问题2:列式:六、应用题(30分)(1—5小题各4分,6—7小题各5分)1、王师傅加工一批零件,原计划每小时加工30个,6小时可以完成,实际每小时比原来计划多加工20%,实际加工这批零件比原计划提前几小时?2、一个圆柱形油桶,底面内直径为40厘米,高50厘米,如果每立方分米柴油重0.85千克,这个油桶可装柴油多少千克?3、王飞到山上图书馆借书,他上山每小时行3千米,从原路返回,每小时行6千米。求他上下山的平均速度。4、客车和货车同时从甲、乙两地的中点向相反方向行驶,5小时后,客车到达甲地,货车离乙地还有60千米,已知货车与客车的速度比是5:7,求甲、乙两地相距多少千米?5、希望小学原计划买12个皮球,每个0.84元,现在从买此球的钱中拿出1.68元买了跳绳,剩下的钱可买几个皮球?6、仓库有一批货物,运走的货物与剩下的货物的重量比为2:7,如果又运走64吨,那么剩下的货物只有仓库原有货物的,仓库原有货物多少吨?7、甲乙二人共同完成242个机器零件。甲做一个零件要6分钟,乙做一个零件要5分钟。完成这批零件时,两人各做了多少个零件? 2013小升初英语模拟测试题及答案(十二)。一、听力(15')A.听对话及问题选择答案(5')1. A. noodles B. rice and noodles C. rice and meat D. meat and noodles2.A. A dog B. A cat C. A horse D. A fish3.A. By bus B. By car C. By bike D. On foot4.A. 7:50 B. 8:00 C. 8:05 D. 8:105.A. Friday B. Saturday C. Thursday D. WednesdayB.选出与所听句子意思相同或相近的选项(5')1. A. Kate is good at playing basketball.B. Kate likes playing basketball.C. Kate hates playing basketball.D. Kate is a basketball player.2.A. Tom is interested Mary's book.B. Tom's story-book is very interesting.C. Mary likes reading Tom's story book very much..D. Mary's book is as interesting as Tom's.3.A. She can remember everything.B. Her memory is very good.C. Her memory isn't very good.D. Please don't remember her.4.A. I heard from my parents last month.B. I wrote a letter to my parents last month.C. My parents heard from once.D. My parents got a letter from me.5.A. I do well in English.B. I don't do well in English.C. I like English very much.D. I'm not from England.C.听短文,判断下列句子是否正确,正确的写 "T",错误的写 "F" (5') 1. The library is open 8 hours a day. 2. Students can borrow(借)all the books from the library. 3. Students can keep books for at least two weeks. 4. If a student doesn't return the books on time(按时), he has to buy the books. 5. Students can't take food and drinks into the library.二、选择填空(15')1. Ask the boy not to make any ________. I can't fall asleep.(入睡)A. voice B. noise C. sound D. sounds2. I wrote ___________ passage in English class yesterday.A. an eight-hundred-word B. an eight-hundred wordsC. a eight-hundred-words D. a eight-hundred words3. An old friend of my sister's always helps my brother and ______ with _________ lessons.A. I … our B. me … ourselves C. I … my D. me … our4. Simon heard his neighhour ________ for help at night.A. calls B. call C. calling D. to call5. It's cold here. Please keep the window __________.A. close B. closed C. closing D. closes6. _____ your brother _______ his holidays in Beijing next years?A. Is … going to spend B. Is … spending C. Do … spend D. Does … spend7. ___________ nice the watch is !A. What B. What a C. How D. How a8. Let's get __________ it and have a look.A. close B. be close C. close to D. be close t o9. ________ you afraid of __________ late for school?A. Do … be B. Are … be C. Do … being D. Are … being10. It's important _________ with fire.A. to careful B. being carefully C. to being careful D. to be careful11. A: __________ do you have a bath in winter?B: Once three days.A. How long B. How often C. How soon D. How many12. ____________! It's getting dark.A. Be careful B. Hurry up C. Don't hurry D. Don't worry13. A: ______________B: Never mind. What can I do for you?A. Don't rush. B. Sorry to trouble you. C. Can I help you. D. No hurry.14. He makes his class _________, so he always makes the students ____________.A. interesting … laughing B. interested … laugh C. interesting … laugh D. interested … laughing15. When the house is on fire, the firemen let people _________ the fire.A. to keep away from B. keeping away from C. go into D. keep away from三、完形填空(10')It is Sunday morning. The students are going to the 1 . Lily and Lucy like animals 2 . They get up very 3 in the morning. After 4 they go to school. The students 5 at the school gate. They go there 6 . Miss Gao goes 7 them.There are many kinds of 8 in the zoo. The biggest one is 9 . But they can't see any cats.The students 10 the zoo at four in the afternoon. Lily and Lucy get home at about five. They have a very good time. 1. A. cinema B. zoo C. factory D. hospital 2. A. very well B. very good C. very much D. very nice 3. A. early B. late C. earlier D. later 4. A. supper B. lunch C. breakfast D. meal 5. A. see B. watch C. look D. meet 6. A. by foot B. on foot C. by feet D. on feet 7. A. for B. and C. with D. of 8. A. animals B. birds C. cats D. boats 9. A. a monkey B. a bird C. a tiger D. an elephant10. A. get to B. go to C. leave D. like四、阅读理解(10')AIn some parts of the world there are large deserts. There are no trees and no water there. Travelers must take food and water with them. The only animal that can walk through the desert is the camel. It can go without food or water for a long time and it can carry heavy things. People call the camel "the ship of the desert". The camel's humps(驼峰)hold fat, and its stomach(胃)holds water in twelve deep pockets. Each pocket has a mouth which closes, and the food does not mix(混合) with the water. When the camel wants some water, it can get it out of the pockets. The camel's food is grass and leaves of trees.根据短文内容,判断正误,正确的写T,错误的写F.(5') 1. Camels can walk through the desert because they don't drink or eat. 2. People call the camels "the ship of desert", because all camels all camels can swim in the desert. 3. All camels have less than three humps. 4. Every camel, even the young, has got twelve pockets in its stomach. 5. Camels eat only grass.BOne day an old man is selling(卖) a big elephant. A young man comes to the elephant and begins to look at it slowly. The old man goes up to him and says in his ear, "Don't say anything about the elephant before I sell it. Then I will give you twenty dollars." "All right," says the young man. After the old man sells the elephant, he gives the young man twenty dollars and says, "Now, can you tell me how you found the elephant's bad ears?" "I didn't find the bad ears," says the young man. "Then why are you looking at the elephant slowly?" asked the old man. The young man answers, "Because I have never seen an elephant before, and I want to know what it looks like."根据短文选择正确的答案1. ________ the elephant.A. The young man sells B. The old man sellsC. The two men sell D. The old man buys2. The young man is looking at the elephant slowly. He wants to find out ___________.A. which foot of the elephant is bad B. how heavy it isC. which ear of the elephant is bad D. what it looks like3. The young man ______________.A. knows the elephant has bad ears B. wants on buy the elephantC. looks after the elephant D. gets some money from the old man 4. The young man ______________.A. is not interested in elephants B. knows what an elephant looks likeC. has seen some elephants before D. has never seen an elephant before 5. Hearing what the young man said, the old man will probably(很可能)be ____________.A. angry B. happy C. dangerous D. hungry五、选用所给句子完成对话(5')A: Thank you for your coming first. 1 ?B: I'm fourteen.A: You're so young, but you're very helpful. 2 .B: On the eleventh of May.A: 3 ?B: When the man was crossing the street, a car hit him and I was just there.A: 4 ?B: Of course not.A: 5 ?B: I called the police and the police car arrived quickly. We sent the man to hospital at once. He was saved at last.A: You're brave enough. We'll reward you.A. Were you afraid?B. What did you see?C. How old are you?D. When did you see the accident?E. What did you do then?答案:一、听力A.听对话及问题选择答案CACBDB.选出与所听句子意思相同或相近的选项(5')CCCABC.听短文,判断下列句子是否正确,正确的写 "T",错误的写 "F"TFFFT二、选择填空BADCB ACCDD BBBCD三、完形填空BCACD BCADC四、阅读理解FFTTT BDDDA五、选用所给句子完成对话CDBAE六、选错改错1.B. his 2. B. work it out 3. C .has 4. A. don't 5. B. anything七、用括号所给单词的适当形式填空1. once 2. hiding 3. more carefully 4.buildings 5. worried 6. himself 7. fun 8. last 9. visitors 10. dangerous八、句型转换,按括号的要求改写句子1. enjoyed listening to 2. can't find it anywhere3. What must , do 4. How much milk is5. What , weather , is 6. get/receive a letter九、根据中文句子,补全英文句子1. fired out ; came from2. in the sun ; is bad for3. be afraid of4. gentle ; causes any trouble十、缺词填空,根据首字母和上下文的意思写全单词playing in How some jumping thinks can't down be him十一、书面表达I began to learn English in the primary school. At first I was very interested in learning English. Some time later, I could read all the English letters, but I couldn't write them well. I found it difficult to learn English. I wanted to give up. Then my teacher taught me how to read and write. Now I am interested in English again and I find it very interesting.

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加菲慢半拍oO

1、Did you know? In the decimal number system (base 10) ten different digits, 0 to 9, are used to write all the numbers. In the binary number system (base 2) two different digits are used, i.e. 0 and 1.Which one of the following numbers is not a valid number in theoctal number system (base 8)?A) 128 B) 127 C) 126 D) 125 E) 1243、The number of diagonals that can be drawn in a regular polygon withtwenty sides (icosagon) is_____.4、If a and b are integers, 10Ä3=1,152Ä7=3, and then 379Ä6 is equal to_____.5、Two numbers are in the ratio 2 : 3. When 4 is added to each number the ratio changes to 5 : 7.The sum of the two original numbers is____.6、The greatest number of Mondays which can occur in 45 consecutivedays is____7、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss. After 20 rounds his score is 30. The number of times he has missed is____.8、Three girls A, B and C run in a 100 m race. When A finishes, B is 10 mbehind A and when B finishes C is 20 m behind B. How far in metres wasC from A when A finished?(Let’s assume all the athletes run at a constant speed)9、The areas of the faces of a rectangulabox are 84 cm2 , 70 cm2and 30 cm2.The volume of the box in cm3 is____.10、 You have 3 weights: 1 kg, 3 kg and 9 kg as well as an equal arm balance, as shown. How many different weight objects can you weigh with these three?[Remember the weights may be placed on either side] 答案:1,十进制用0~9表示所有数,二进制只用0和1表示下面哪个数在八进制下是非法的?A)128(八进制用0~7)3,一个二十边形内可画出多少条对角线?170条(20选2,减去20条边)4,如果a和b都是整数,10Ä3=1,152Ä7=3, 那么 379Ä6等于?题目似乎有点问题,看不懂5、Two numbers are in the ratio 2 : 3. When 4 is added to each number the ratio changes to 5 : 7.The sum of the two original numbers is____.5,两个数的比例为2:3,如果分别给两个数加4,则他们的比例变为5:7。原来的两个数的和为?40(16和24)6、The greatest number of Mondays which can occur in 45 consecutivedays is____6,连续45天最多能出现多少个星期一?6个7、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss. After 20 rounds his score is 30. The number of times he has missed is____.7,Saul在玩一个电视游戏,击中得4分,没击中扣6分。20个回合之后他得了30分,那么他有多少次没击中?5次(4×15-6×5=30)8、Three girls A, B and C run in a 100 m race. When A finishes, B is 10 mbehind A and when B finishes C is 20 m behind B. How far in metres wasC from A when A finished?(Let’s assume all the athletes run at a constant speed)8,A,B和C三个女孩进行百米短跑比赛。A跑完的时候,B在A背后10米;B跑完的时候,C在B背后20米。那么A跑完的时候,C在A后面多少米?(假设他们一直匀速跑)28米。(B的速度是A的90%,C是B的80%,C是A的72%)9、The areas of the faces of a rectangulabox are 84 cm2 , 70 cm2and 30 cm2.The volume of the box in cm3 is____.一个长方体盒子的三个面面积是84cm2,70cm2和30cm2。这盒子的体积是多少?420cm3(14cm×6cm×5cm)10、 You have 3 weights: 1 kg, 3 kg and 9 kg as well as an equal arm balance, as shown. How many different weight objects can you weigh with these three?[Remember the weights may be placed on either side] 你有1kg,3kg和9kg3个砝码和一个天平,你可以称出多少个不同的重量?(记住砝码可以放在天边两边的任意一边)13个(1~13kg)

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autumngold

小升初的英语试卷及答案~

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酸奶娃儿

我会翻译 但是数学真心差 还是奥数

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