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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·英语·填空题表语从句

A:Hi!Kate.Are you free this Sunday? B:Yes,nothing much.What are you going to do,Billy? A:(1)______My paper cutting works will be shown there. B:Wow,you are so great!(2)______ A:They are about flowers,birds and fishes.The

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九年级·英语·填空题一般现在时的被动语态

Now the old adding machine (replace) by a computer.

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八年级·英语·选择题不定式

My sister is trying French because she plans to France.( )

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九年级·英语·填空题文学作品类阅读

If you love reading books,you must know about the book The Little Prince.It's a famous novel written by a French writer.As one of the best-selling books in history,it has been sold as many as 200 million copies in 253 la

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九年级·英语·填空题文学作品类阅读

Many of you have heard a Cinderella (灰姑娘) story,but you may not know that there are over a hundred different ways to tell the Cinderella story.When writers tell the same story in a different way,it is called their"versio

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九年级·英语·解答题文学作品类阅读

Tape-Measure Murder is a short story by Agatha Christie.In the story,Miss Politt,the dressmaker,finds that Mrs.Spenlow is dead in her house in a small village called St Mary Mead.Everybody,including the police,thinks tha

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七年级·英语·填空题新闻报道类阅读

Meeting robot friends.Today,AI robots play an important role in people\’s daily lives.These robots work in many areas to help people. I\’m a teaching robot.My job is to spend time with children and teach them.I look like

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八年级·英语·填空题新闻报道类阅读

Babu lived in India and worked as a potter(陶工).He borrowed an elephant from his rich neighbour,Purna.But unluckily,the elephant ran away.Purna said he would put Babu in jail(监狱) if he couldn\’t find the elephant in three

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七年级·英语·选择题状语从句

---I will go to the park with my parents if it _____ tomorrow. ---Enjoy your time.( )

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七年级·英语·填空题状语从句

Hello!Welcome to my grandfather\’s farm.It\’s a big farm.(1)______ are many plants and animals on his farm.What can we see?Look!Many kinds(2)______ animals are beside the lake.We can see ducks,chickens,geese,pigs,horses,

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九年级·英语·选择题状语从句

The Greens always go somewhere interesting the holiday begins.( )

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九年级·英语·填空题句型转换

Children had great fun playing in Disneyland.(改为感叹句) ______ great fun children had______ in Disneyland!

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七年级·英语·选择题主谓一致

There ______ many students on the playground at the moment.( )

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七年级·英语·选择题主谓一致

Peter a baseball,but he doesn\’t a basketball.( )

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九年级·英语·选择题语态的辨析

The Yangzhou Taizhou International Airport ___ in 2012and it has been in use for about 4years.( )

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九年级·英语·选择题语态的辨析

More chances _____ for students to learn from each other if working in groups.( )

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九年级·英语·选择题语态的辨析

The International Kite Festival____________ in Weifang every year.( )

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九年级·英语·填空题一般现在时的被动语态

(2022九上·广西壮族自治区开学考) You can go out if your homework (do).

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八年级·英语·选择题一般现在时的被动语态

(2023八下·秦淮期末) With the help of Project Hope, many schools ____ in poor areas each year.

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七年级·英语·填空题阅读判断题

In some foreign(外国) countries,some people don\’t like the number 13.They don\’t think 13 is a lucky number.For example,they don\’t like to live on the thirteenth floor. My friend Jack has got the same idea.He doesn\’t li

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