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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·填空题政治经济类阅读

In the US,Mother\’s Day is a holiday on the second Sunday in May.It is a day when children give their (1)______cards,presents and flowers. One of the best ways to celebrate Mothers Day is to give your mother a day off.Le

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九年级·英语·填空题首字母阅读填空

Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词,使其内容通顺.每空格限填一词,首字母已给出) Many children use the Internet to get useful knowledge and information,and to relax in their time.But some of them are not us

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九年级·英语·填空题首字母阅读填空

阅读短文,在其后空白处写出各单词的正确形式.单词的第一个字母已经给出 The worst traveler in the world was Paul of San Francisco.Once he (76)f from the U.S.to his hometown in Italy to see someone at home.The plane made a one-hour stop to get oil at an airp

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九年级·英语·填空题首字母阅读填空

Read the passage and fill in the blanks with proper words.(在短文的空格内填入适当的词,使其内容通顺,每空格限填一词,首字母已给) Is fire good for our life?Of course it is.You can cook your food with it.And you can light with it.But fire is bad,too.Fire k

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九年级·英语·完成句子现在进行时的被动语态

翻译(根据中文提示完成句子) 【1】只要你开车小心,你可以用我的车。 You can use my car _______________ _______________ _______________you drive carefully. 【2】我的英语书被落在家里了,因此我不得不借一本。 My English book _______________ _______________ _______________ at home,

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九年级·英语·填空题人生感悟类阅读

An old man called Xie Liang,80,has given free help to people who ask for directions for 8 years. Every day,Mr Xie goes to Dongzhimen Bus Stop,and gives help to at least 1,200 people asking for directions.During holidays,

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九年级·英语·选择题人生感悟类阅读

You\’ll possibly make mistakes in the exam you check the paper very carefully.( )

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九年级·英语·选择题现在进行时的被动语态

The great play _______ at the theatre now.

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九年级·英语·填空题翻译填空

不应当允许学生将电子产品带入学校. ______

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九年级·英语·填空题翻译填空

上周他们成功地通过了考试. They ____________passing the exam last week.

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九年级·英语·填空题科普知识类阅读

People(1)______different personalities behave (2)______in English study.Some people are outgoing.They learn better and (3)______in the very beginning.But some are (4)______.They don\’t like (5)______.Can these two types

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九年级·英语·选择题科普知识类阅读

Tim hopes there will be more computer classes and the teachers say they will consider his ______.( )

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九年级·英语·填空题祈使句

上床之前,我们应该先脱掉鞋子. We should ____________our shoes before going to bed.

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九年级·英语·填空题首字母阅读填空

阅读短文,根据短文内容及首字母提示,在空白处填入一个适当的单词. Bill and Simon were good friends.One summer they were on (71)h .They wanted to sail around the Caribbean Sea in their boat for two weeks. During their trip,they saw many whales.Bill and S

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九年级·英语·填空题祈使句

我们为今天的野餐准备了很多食物和饮料. We prepared a lot of food and drinks for today\’s ______.

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九年级·英语·选择题祈使句

—I am afraid I have to give up my dream of being a basketball player,for I am short. — . Spud Webb is even shorter than you.( )

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九年级·英语·填空题阅读排序

The traditional Chinese lunar calendar divides the year into 24 solar terms.Grain Rain(谷雨),as the last term in spring,starts on April 19 and ends on May 4. Grain Rain comes from the old saying,"Rain brings up the growth

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九年级·英语·填空题阅读排序

A man in Pakistan is now working to help children get an education.When he was a child,he did not go to school because he was too poor. It is reported that Pakistan has 25million children who do not go to school.That is

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九年级·英语·填空题阅读排序

"Face it,Andy.You sold your soul the day you put on that first pair of Jimmy Choo's."That line from the movie The Devil Wears Prada is an example showing how a shoemaker has become famous in the fashion world. Jimmy Choo

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九年级·英语·填空题阅读排序

Once Louis the Twelfth,the King of France,happened to walk into the kitchen of his palace.There he found a small boy busy at work and singing happily. The boy had bright eyes,and a happy,sunny face,and his looks and mann

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