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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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one you practice many but talent careful word how be The 7-year-old Du Siqi is(1)______ in calligraphy.But she often says hard work is more important than talent.She spends an hour each day(2)______ her writing.This year
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In ancient times,there was a king who had many slaves (奴隶) working for him.One day a slave called Androcles ran away.He stopped in a forest to have a rest because he was so(1)______after running for a long time. Suddenly
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The CDs belong to ,you can\’t take them away.( )
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Yesterday,my friend told me that he had to hit the books for a test.I couldn\’t believe my ears.I wondered why he needed to physically hit his books before taking a test.My friend laughed after listening to my question.H
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Mr Wang is a good teacher and we all like______lessons.( )
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同学们来到新的学校已经一个月了,一定认识了很多好朋友.下面请你用几句话简单介绍一下自己和你的一位好朋友. 内容包括:姓名(英文名,不得出现真实姓名),年龄,班级,喜好和兴趣爱好等 要求:词数80左右
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假如你是赵鹏,你的好友Peter知道你这几年变化很大,想了解一下你的变化和梦想,请你给他写一封回信,谈谈你的变化与梦想. 写作要点: 1)收到Peter的来信很兴奋; 2)今昔变化: 描述 性格 运动爱好 身高体型 学习状态 过去(Past) shy no interest in sports short and thin playing mobile games and not studying 现在(Now) outgoing lo
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—Your friend,Leo ,often plays guitar after school. —Yeah,he is good at it.( )
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Many of us play sports our free time the weekend.( )
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The world\’s(1)______(one) large language model(LLM) for moon study is coming!It makes studying the moon much(2)______(easy). "We call the LLM the \’smart brain\’ for the digital moon,(3)______ it has the most moon infor
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You can see five ______(钥匙)on the table.
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Mary and I ______ in the same grade.(be)
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Let\’s ask Tina to go to the park with us. (改为反意疑问句) Let\’s ask Tina to go to the park with us, ____________?
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—Is a cute dog in the picture? 一No,there isn\’t.( )
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— What does your father do,Li Hua ? — He is a .He works at a university.( )
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International Ice and Snow Sculpture Festival--Harbin,China The yearly International Ice and Snow Sculpture Festival in Harbin is the largest in the world.Some people compare it to a frozen Disneyland,because the festiva
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①Every Saturday night Mama would sit down by the kitchen table and count out the money Papa had brought home. ②"For the rent(房租)."Mama would count out the big silver pieces. ③"For the groceries."Another group of coins. ④
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Are you good with money?Do you get pocket money from your parents or do you work to earn money?Read on to find out about British teenagers and their cash! Pocket money Most teenagers in Britain receive pocket money from
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Li Yuqi ng once worked as a volunteer teacher in a village in Guizhou.At that time,she was(1)______(surprise) by the situations the children were facing:being separated (分开) with their parents at a very young age;being v
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Danny didn\’t sleep last night.So he feels very ______(sleep)today.
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