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#1 · 常错题
#2 · 常错题
将循环小数化为分数:整数、有限小数、循环小数都可以化成分数,整数和有限小数化成分数容易,循环小数如何化成分数呢?请看下面的例子. 将循环小数$0.288\ldots $化成分数:将$0.288\ldots $分别乘$10$和$100$,得$2.88\ldots $和$28.88\ldots $,两个得数相减得$26(两个得数小数部分相同)$,而相减所得的$26$应该是$0.288\ldots $的$\left(100-10\right)
#3 · 常错题
今年市委市政府积极推进创建“全国文明城市”工作,市创城办公室为了调查初中学生对“社会主义核心价值观”内容的了解程度\((\)程度分为:“\(A-\)十分熟悉”,“\(B-\)了解较多”,“\(C-\)了解较少”,“\(D-\)不知道”\()\),对我市一所中学的学生进行了随机抽样调查,根据调查结果绘制了两幅不完整的统计图如图,根据信息解答下列问题: \((1)\)本次抽样调查了多少名学生; \((2)\)补全条形统计图和扇形统计图; \
#4 · 常错题
#5 · 常错题
一批水果的标准质量是$30$千克,超出标准质量记为正,低于标准质量记为负,现记录如下:$+8$,$-9$,$-5$,$+7$,$-8$,$-6$,$+7$,$+10$. $(1)$这批水果总共有多少千克? $(2)$第一天按每千克价格$5$元卖出了这批水果的一半,第二天为了吸引顾客把第一天卖水果的价格降价$20\%$后作为新的价格,卖完了剩下的水果,请计算一下这批水果一共卖了多少钱?
#6 · 常错题
分类讨论思想是数学的重要思想,在学习有理数的过程中,也深有感受$!$ $(1)$当$ab \lt 0$时,若$b \gt 0$,$|a| \lt |b|$,则$a+b \_\_\_\_\_\_0$; $(2)$当$abc \lt 0$时,若$ab \gt 0$,则$c \_\_\_\_\_\_0$; $(3)$已知$a$,$b$,$c$是非零有理数,则$\frac{a}{|a|}+\frac{b}{|b|}+\frac{c}{|c|}=
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—Can you tell me if they____shopping tomorrow? —I think they will if the weather____fine.( )
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Once upon a time,there was a forest where all the animals lived happily together.One day,a family went to spend the day in the forest,and one of the little boys of this family left his socks there.Soon after the family l
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With a birthday usually comes a party,as well as a cake,presents and wishes from friends.But beyond these,what does a birthday mean? One year,I (1)______my birthday alone in a new place.Calls and messages poured in as us
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popular be they appear believe help give kind strip make Do you know Garfield?He is a character of a comic strip.He first(1)______ in the comic strip on June 19,1978.Garfield is famous for a cartoon.Lots of Garfield book
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As we all know,Hainan Island is island in our country.( )
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The teacher asked us to read ______(从头到尾) all the new words after class.
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________,and you will be healthier.( )
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A brand new year has come with wishes and hopes.Do you want to make any changes in 2024? Wang Yeqing,14,from Shanghai: I want to learn the piano in 2024.I wasn\’t interested in it until I saw my neighbor playing it on my
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A: ______? B:He was sleeping when the strong wind came.
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Hi,I\’m David House from the UK,a writer working for Teens Magazine.Here,I help solve the readers\’ problems.I hope I can help with yours. Hi David, I have a nickname called"Big Eater".Every time I have a meal in the din
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My dream job is____a pilot,but my parent____me to be a teacher.( )
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Betty is the tallest student at school,but she doesn\’t like being tall.Her classmates make (1)______ of her. "Betty,Betty,long as spaghetti(意大利面)!"They always sing to her.Ella is one of the(2)______ students.She can pla
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--- Miss Li, I find it difficult to make ______ listen to you carefully for long periods. --- Perhaps you should have enough sleep and take notes while listening to me.( )
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朋友问你"Is getting up late good or bad for our health?",你可以这样回答: ______.
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Zhi Nong was born in a small town in Yunnan Province.When he was young,he moved to Kunming with his mother.Feeling like a caged (笼中的) bird in a big city,he was bored with the busy and noisy city life and looked forward t
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When the news on TV reported that a heavy rainstorm was in the area,Ben could hear strong winds outside his home in Alabama.With no light outside,it (1)______(feel) like midnight. Everyone was busy.Ben\’s dad was (2)____
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We saw the houses of the Chinese______(trade) from 100 years ago.
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What was the Earth like 200 million years ago?The weather was warm and there was plenty of rain.Tall trees,thick bushes,and twisting(缠绕的) vines(藤) grew.In these jungles(丛林),important creatures appeared.Maybe you\’ ve hea
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My father _____ bus to work and it takes a long time ____ for one.
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You must be careful when you swim_____the lake.( )
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