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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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九年级上·语文·综合题名著导读（一）《艾青诗选》：如何读诗

阅读下面文字，根据拼音语境完成后面的题目。艾青箴言人人喜欢听真话。诗人只能以他的由（zhōng）之言去摇________人们的心。诗人也只有和人民在一起，喜怒哀乐都和人民相一致，智慧和勇气都来自人民，才能取得人民的信任。人民不喜欢假话。哪怕多么装腔作势、多么冠冕堂皇的假话都不会打动人们的心。人人心中都有一架（héng）量语言的天平。（节选自《自序》）（1）根据拼音写出相应的汉字。 zhōng héng 由量（2）填入文

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九年级·英语·选择题Unit 8 Surprise endings

- What did he do after he paid his _____________ for the newspapers？ - He sat down by the window and read his newspapers.（）

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九年级·英语·选择题Unit 8 Surprise endings

A _____________ refers to a short piece of writing to help you remember something.（）

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九年级·英语·选择题Unit 8 Surprise endings

To _______________ something means to calculate the total number of something.（）

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九年级·英语·选择题Unit 8 Surprise endings

- The task is very difficult for us. -Don't be worried. I'm sure we will finish it successfully at last . （）

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九年级·英语·选择题Unit 8 Surprise endings

- What are the police doing？ -They are looking for some men who robbed （抢劫） a bank.（）

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九年级·英语·选择题Unit 8 Surprise endings

- Why didn't you buy the big house？ -Because we can't afford it. It's very expensive.（）

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九年级·英语·选择题Unit 8 Surprise endings

-Ali reached into his pocket and drew a piece of paper from it. -What was written on it？（）

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九年级·英语·选择题Unit 8 Surprise endings

- What can I buy for her as a birthday present ？ -How about a storybook？ She likes reading storybooks very much. （）

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七年级上·英语·阅读理解Unit 1 Relationships in beijing

Choose the best answers. John, David and James were three brothers. Every year on their mother's birthday, they sent her expensive presents. They liked to show her how rich they were. The oldest brother , John, decided t

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七年级上·英语·阅读理解Unit 1 Relationships in beijing

Choose the best answer.(根据短文内容.选择最恰当的答案) Hi! My name is Robert and I live in Chicago. My school is called Parkside Elementary. It is Jake and Elizabeth's school too. Michael and Trevor's school is called Lincoln Middle S

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七年级上·英语·填空题Unit 1 Relationships in beijing

Choose the best words or phrases and complete the passage.(选择最恰当的单词或短语完成短文) The first day of school, our professor introduced an old lady Rose to us. "Why are you in college （1） such an age'?" I asked her. She replied, "

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七年级上·英语·填空题Unit 1 Relationships in beijing

Choose the best answer and complete the passage. There was once a bad king. All his people hated him very much. One day in a summer he was swimming by himself in a river. The king was a （1） swimmer, but when he was in th

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七年级上·英语·句型转换Unit 1 Relationships in beijing

He bought a new bike yesterday. (改为否定句) He a new bike yesterday.

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七年级上·英语·句型转换Unit 1 Relationships in beijing

She has travelled to Shanghai by plane.(改为一般疑问句) she to Shanghai by plane?

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七年级上·英语·句型转换Unit 1 Relationships in beijing

are going to, with, the , children, visit, Mr Hu, the Great Wall, tomorrow (连词成句)

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七年级上·英语·句型转换Unit 1 Relationships in beijing

Jack goes to school on foot every day. (句子改写句意不变) Jack school every day.