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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·选择题Unit 3 Language in use

Mr.Smith's factory is becoming ______.He needs more workers.

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九年级·英语·选择题Unit 3 Language in use

Mr.Smith ______ to represent the computer company because of his contribution.

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九年级·英语·选择题Unit 3 Language in use

—Will you______the game tomorrow? —Of course,I will.

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九年级·英语·选择题Unit 3 Language in use

The important meeting ______ on a cold morning last year.

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九年级·英语·选择题Unit 3 Language in use

—Nice work.It took you______10 minutes to do the maths problem. —Thank you for saying so.

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九年级·英语·句型转换Unit 3 Language in use

Ⅰ.句型转换 【 1 】 Is tea planted in South China ?(改为主动语态) ______ people ______ tea in South China? 【 2 】 I am given a birthday present by my parents every year .(同义句转换) A birthday present ______ ______ ______ ______ by my par

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九年级·英语·填空题Unit 2 He was invited to competitions around the world.

Dear Abby, My name is James Brown.My brother is John Brown.He is eight years (1) (大)than me. When John was in high school,he was very good at the 110m hurdles (2) (比赛).He always got first place in the school sports meeti

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九年级·英语·阅读理解Unit 2 He was invited to competitions around the world.

David Beckham , former England captain retired in May . The great midfield player made his first appearance in the match between England and Moldova in 1996 . Since then , he has made 115 appearances for England and 394

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九年级·英语·选择题Unit 2 He was invited to competitions around the world.

—Will you please show me______the role­play exercise? —Sure.

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九年级·英语·选择题Unit 2 He was invited to competitions around the world.

—When and where was the great composer born? —He was born ______ Macau ______ 13th June,1905.

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九年级·英语·选择题Unit 2 He was invited to competitions around the world.

You don't need to ______ yourself ______ others.

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九年级·英语·选择题Unit 2 He was invited to competitions around the world.

A Hope Primary School ______ in my hometown last year.

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九年级·英语·选择题Unit 2 He was invited to competitions around the world.

We can't begin the meeting.______,not everyone is here.

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九年级·英语·句型转换Unit 2 He was invited to competitions around the world.

Ⅰ.句型转换 【1】The boy spent a lot of time playing computer games.(改为同义句) It ______ the boy a lot of time ______ ______ computer games. 【2】They invited me to go to their party.(改为被动语态) I ______ ______ ______ go to their party

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九年级·英语·填空题Unit 1 Daming wasn’t chosen for the team last time.

Maggie was a new student in the class. It was a Tuesday, and Maggie _____ Tuesdays because there was a gym class and she would be picked last. Maggie sat on the gym floor, feeling _____. Mr. Murphy, the gym teacher, aske

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九年级·英语·填空题Unit 1 Daming wasn’t chosen for the team last time.

用括号中所给单词的适当形式填空 【1】Remember _________ (post)the letter for me on your way to school. 【2】My grandfather is _________ (come)either today or tomorrow. 【3】We are very proud that a student from our school has _________ (win)t

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九年级·英语·单词拼写Unit 1 Daming wasn’t chosen for the team last time.

根据句意及汉语提示完成单词 【1】It's important for students to have a good_________(记忆)to study well. 【2】I have made a _________ (决定)about my study goal for the new term. 【3】We usually have lunch at _________ (中午). 【4】The little boy ga

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九年级·英语·补全对话Unit 1 Daming wasn’t chosen for the team last time.

根据对话内容,从方框内选择恰当的句子 , 并将其字母标号填入对话相应的空白处,使对话完整,合乎情景。(有两个多余选项 ) Jack: Was the concert good? Sadie: 【 1 】 Jack: Why are you angry then? 【 2 】 Sadie: Well, after the concert I waited outside the theatre—in the rain. I wanted

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九年级·英语·单词拼写Unit 1 Daming wasn’t chosen for the team last time.

请用适当的介词填空 【1】The players are training ______ the coming school sports meeting. 【2】The score now is six ______ ten. 【3】My sister was mad ______ me because I broke her glasses. 【4】I hope I can play tennis ______ the Olympi

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九年级·英语·选择题Unit 1 Daming wasn’t chosen for the team last time.

They didn't ______ the game. Instead they were ______.

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