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#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·英语·填空题连词成句

选用方框内的单词或词组填空,其中有一个单词或词组是多余的. preferred,speeches,shape,daily,standard,impatient (1)Do believe in yourself,because it is you who ______ your life and your future. (2)When Helen\’s father was young,he ______swimming in the

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九年级·英语·填空题人物故事类阅读

When I was growing up,I had an old neighbour,Dr.Gibbs.He didn\’t look like any doctor I\’d ever known.He never invited us to play in his yard,but he was a very kind person. When Dr.Gibbs wasn\’t saving lives,he was plant

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九年级·英语·填空题记叙文;人物故事类阅读;判断推理;文中细节

Next day,Tom and Huck had an important talk about the money they had seen.Huck said someone else must have taken it from Indian Joe\’s room in the hotel. "Huck,I bet the money is in the cave!Will you go there with me and

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九年级·英语·填空题人生感悟类阅读;词根词缀;其他类阅读;判断推理;文中细节

"I don\’t want to go to school,Mum.I feel a bit sick.""If you have a school problem,just tell me.When I was a little girl,sometimes some boys called me terrible names."Ollie looked up and asked,"Why did they do that?" "S

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九年级·英语·填空题新闻报道类阅读

(1)The picture above may be from ______. A.a story B.a diary C.a letter D.a newspaper (2)______ of Chinese people don\’t have sleeping problems. A.19% B.22% C.59% D.81% (3)Who goes to bed latest? ______ A.People born in

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九年级·英语·填空题人物故事类阅读

Ann a was a 9-year-old girl from a small village.She finished primary school till the 4th grade at her village.For the 5th grade,a famous school in the city (1)______ her.Anna got very happy.Today was the (2)______ day o

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九年级·英语·选择题科普知识类阅读

-I think Millie is careful enough to be an accountant in the future.( ) -.____She makes mistakes at times and she doesn\’t like working with numbers.

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九年级·英语·选择题宾语从句

-What did your father say to you just now? -He asked me .( )

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九年级·英语·选择题情态动词;虚拟语气

-Mum, why do I have to wash hands so many times a day? -For your health, you______be too careful.( )

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九年级·英语·选择题冠词

Wearing white can help people _______when they feel stressed.( )

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九年级·英语·选择题动词词义辨析

It's reported that nine stations on Nanjing Metro Line 3are decorated to ______ scenes from the Dream of Red Mansions (红楼梦).( )

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九年级·英语·选择题名词;形容词;实义动词

Jackie Chan is a ______ actor. He has ______ made some great movies over the years.( )

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九年级·英语·选择题动词;非谓语动词

My father doesn't like shopping much.he would rather TV at home than . around for hours in shops( )

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九年级·英语·选择题日常生活类阅读;词根词缀;文中细节

The Typhoon(台风) Beibijia hit Pudong,east China\’s Shanghai, Sept.16,2024.( )

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九年级·英语·选择题冠词

—Daniel,look at the in the sky!It\’s really beautiful! —Yes.Let\’s take a photo of it.( )

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九年级·英语·填空题任务型阅读

What is the main topic of the passage? (1)______ can change people\’s feelings. Why are some books green? Because green is good for the(2)______ eyes. How does the colour red make most people feel in a restaurant? The co

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九年级·英语·solution故事阅读类;记叙文;学校生活

After the winter vacation, I had to move to a new city with my parents. On the first day to my new school, it was cold and 21. . I was walking alone slowly 22. worrying about something in my new school. It was early and

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九年级·英语·choice生活常识

20. You should be careful when you see the sign. A. B. C.

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九年级·英语·choice其他副词

19. Traditional Chinese medicine works ____. More and more people believe it.

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九年级·英语·choice主语+be+adj.+介词+名词或代词;表示原因、目的的介词

18. Hainan is famous ____ its beautiful beaches. Many tourists visit it every year.

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