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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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七年级·英语·句型转换Section B

My phone number is 256-6893 .(对画线部分提问) ____________your phone number?

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七年级·英语·句型转换Section B

Are these your keys?(同义句转换) Are these ____________?

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九年级·英语·阅读理解Unit 3 Language in use

Bath, 97 miles west of London, is the largest city in Somerset, England. It became a World Heritage Site in 1987. The city got its name from the Roman Baths, which was a place for public bathing in Roman Britain. The wat

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八年级·英语·单词拼写/单词释义Unit 4 Do it yourself

告诉他不要再犯语法错误了。 Tell him not to ____________ in grammar.

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八年级·英语·单词拼写/单词释义Unit 4 Do it yourself

过去的几年我对象棋很着迷。 I am ____________chess in the past few years.

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八年级·英语·单词拼写/单词释义Unit 4 Do it yourself

UFO是什么的缩写? What does UFO____________ ?

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八年级·英语·单词拼写/单词释义Unit 4 Do it yourself

你最好把房子涂成白色。 You ____________paint the house white.

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八年级·英语·阅读理解Unit 4 Do it yourself

Mo was born into a farming family in a village in Shandong province .He grew up listening to folk stories about gods,spirits foxes .Those stories later became the inspiration (灵感)for Mo's writing. Mo left school at the a

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八年级·英语·阅读理解Unit 4 Do it yourself

DIY is very popular in China now.Yang Chen works for a computer business in Beijing.Though he enjoys his work,it is hard for him to relax(放松)after work. "For a long time,I had no choice(选择)except going to a bar for a dri

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八年级·英语·阅读理解Unit 4 Do it yourself

Mo was born into a farming family in a village in Shandong province .He grew up listening to folk stories about gods,spirits foxes .Those stories later became the inspiration (灵感)for Mo's writing. Mo left school at the a

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八年级·英语·阅读理解Unit 4 Do it yourself

DIY is very popular in China now.Yang Chen works for a computer business in Beijing.Though he enjoys his work,it is hard for him to relax(放松)after work. "For a long time,I had no choice(选择)except going to a bar for a dri

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九年级·英语·填空题Unit 2 It’s a long story.

Li Lin is going to college after the Spring Festival. His sister is seeing him off at the station. Li Lin says 【 1 】 he will miss his family, and Li Wei tells him 【 2 】 (be) careful. When Li Lin gets 【 3 】 the train, he

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九年级·英语·填空题Unit 2 It’s a long story.

选词填空 miss, seat, stupid, take care, past 【 1 】 When you are outside alone, you must _________. 【 2 】 He was away from home for some days and he _______ his family very much. 【 3 】 I made such a silly mistake that I felt

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九年级·英语·单词拼写Unit 2 It’s a long story.

单词拼写 【 1 】 This shop sells all kinds of ________( 夹克衫 ). Let’s go inside and have a look. 【 2 】 With the fast development of science, our life has _________( 改变 ) a lot in the last 15 years 【 3 】 He was ________( 惊讶的 ) t

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九年级·英语·选择题Unit 2 It’s a long story.

The old man was ______ tired ______ walk.

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九年级·英语·阅读理解Unit 2 It’s a long story.

Recently, my husband and I had the chance to do something good for two people who were complete strangers to us. It made us feel so good to be able to do it that I thought I should share. We were traveling to Thailand on

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九年级·英语·填空题Unit 2 It’s a long story.

【题目】 阅读理解填词 Many years ago, in a small village, an old man was hired to clear the spring (泉水) up on the mountain.He took care of the spring every day, and s 【 1 】 away all the leaves and other things t 【 2 】 would make t

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九年级·英语·补全对话Unit 2 It’s a long story.

补 全对话(共 5 小 题 ;每小 题 2分 ,满 分10分 ) 根据对话内 容 ,在每 个 标有 题 号的空白处填入一个适 当 的 句 子 , 使对话完 整, 合乎情境 。 A: The summer holi d ay is coming. Will you go to Beijing wi t h me? B: Sorry, I won't. I went there last year. A: H a ve you planne

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八年级·英语·填空题Unit 3 A day out

The New Baby The picture shows a family visiting their new baby in hospital.I think it's probably the evening,because the light is (1) ,so the father must have brought his children (2) work. There are two children beside

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八年级·英语·单词拼写/单词释义Unit 3 A day out

他们保守着他们之间的秘密。 They ______.

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