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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·选择题任务型阅读

The teacher has given us a explanation of the rules of playing chess and we know how to do it now.( )

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九年级·英语·填空题社会文化类阅读

Do you think native English speakers are best at speaking the English language?Some experts (专家) believe that when it comes to successfully communicating in English,non-native speakers are actually easier to understand.

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九年级·英语·填空题健康环保类阅读

I hope you will pardon ______(I) for doing so.

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九年级·英语·填空题新闻报道类阅读

The Shenzhou XVIII crew(成员) returned to Earth on Monday morning Nov.4th,2024,finishing a six-month mission onboard the Tiangong space station. The astronauts brought back 55 sets of experimental samples,with a total weig

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九年级·英语·填空题新闻报道类阅读

The 2024 Paris Olympic Games ______ (hold) in July.

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九年级·英语·解答题史地常识类阅读

(1)Coffee is drunk by the largest number of people in the world. (2)Tea has a history of about 1,000 years. (3)In ancient China,tea was used as a kind of medicine. (4)Tea is produced mainly in Fujian,Zhejiang and Yunnan

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九年级·英语·填空题人生感悟类阅读

Life is difficult sometimes.What should you do when your parents are embarrassing (使尴尬) you in front of your friends?Or what if you see what looks like a classmate taking away someone\’s headphones?In our social Q\’s col

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九年级·英语·选择题人生感悟类阅读

—Would you mind taking these test papers to the meeting room? — .( )

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九年级·英语·填空题政治经济类阅读

A:Hi,Wu Ming!(1)______ B:Hi,Laura!Pretty good!I\’m looking forward to the Dragon Boat Festival. A:The Dragon Boat Festival?(2)______ B:OK.It\’s a traditional Chinese festival.It\’s on the fifth day of the fifth lunar mon

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九年级·英语·选择题定语从句

I will never forget the day____ we spent in the old town with small houses.( )

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九年级·英语·选择题现在完成时的被动语态

-Do you need any help? -No, thanks. We a lot of support since I came to Chengdu.( )

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九年级·英语·单词拼写-单句过去完成时的被动语态

根据句意、中文提示或英文释义完成单词。 His ideas had been ______________(塑造)by his experiences during the war.

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九年级·英语·单词拼写-单句过去完成时的被动语态

根据句意及汉语提示完成单词 I realized I had been ________(愚弄)when I got to the party.

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九年级·英语·选择题过去完成时的被动语态

He didn't make ____________clear when and where the meeting would be held.( )

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九年级·英语·选择题一般现在时的被动语态

(2023九上·连云港开学考) —____ China International Import Expo(国际进口博览会) organized? —We organize it once a year.

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九年级·英语·选择题一般现在时的被动语态

(2022·天津)A lot of birds ______ in nature parks every year.

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九年级·英语·填空题首字母阅读填空

Here is a letter from Obama,the USA president to his daughters. Dear Malia and Sasha, I know that you've both had a lot of (81)f these last two years,going to picnics,parades and state fairs,eating all sorts of junk food

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九年级·英语·选择题阅读排序

Guyu takes its name from the Chinese saying "rain produces hundreds of grains (谷)",which shows the between weather and farming.( )

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九年级·英语·填空题阅读表达

Changes are always connected with people.Many people have changed a lot than they used to be.They change themselves because of different reasons.Let\’s see the following people talking about their changes. Dave:When I wa

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九年级·英语·填空题阅读表达

A boy guarded the barrels(桶)in his father\’s winery(葡萄酒厂).Every morning,his father gave him a task of brushing the barrels and putting them in order,but the wind often blew the barrels here and there overnight. The boy w

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