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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·填空题Unit 9 International Food Festival

Coca-Cola is enjoyed all over the world. 1. 6 billion gallons are s 【 1 】 every year, in over one hundred and sixty countries. The d 【 2 】 was invented by Dr. John Pemberton in Atlanta, on 8 May 1886 , but it was g 【 3 】

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七年级·英语·填空题Unit 9 International Food Festival

Turkey is an important part of America traditional food. Here are some cool facts about the delicious food and the bird. ★ According to some Americans, the name turkey came from the _____ turkeys make when they are afrai

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七年级·英语·阅读理解Unit 9 International Food Festival

It is Saturday morning. Carla and Jason set out the things they are going to sell because they want to use the money to help some poor people. Soon, friends and neighbours will come. Carla .and Jason have their first cus

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七年级·英语·阅读理解Unit 9 International Food Festival

There was a traveler who was wet and cold because he had ridden in the rain. At last he reached a country inn. The inn was so crowded with people that he could not get near the fire. So he called the inn keeper, "Take so

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七年级·英语·句型转换Unit 9 International Food Festival

Rewrite the following sentences as required (根据所给要求 , 改写下列句子) 【 1 】 He wanted to make some cakes for his mother. (改为一般疑问句) __________ he ___________ to make any cakes for his mother? 【 2 】 I like English better than any

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七年级·英语·填空题Unit 9 International Food Festival

Complete the sentences with the given words in their proper forms(用括号中所给单词的适当形式完成下列句子) 【1】Mr. Hu is going to take part in an ____________ conference this coming Friday. (nation) 【2】After the earthquake many children beca

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七年级·英语·选择题Unit 9 International Food Festival

- May I have a bar of chocolate? -______________________________.

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七年级·英语·选择题Unit 9 International Food Festival

I sometimes teach my son_____________ a paper plane.

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七年级·英语·选择题Unit 8 Growing healthy,growing

We should study hard. We can't watch__________ television every day.

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七年级·英语·完成句子Unit 8 Growing healthy,growing

Rewrite the following sentences as required. ( 按要求改写句子,每空格限填一词 ) 【 1 】 We are going to visit the Great Wall this Sunday. ( 就划线部分提问 ) _____ are you going to ____ this Sunday? 【 2 】 I met my good friend at the airport yest

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七年级·英语·填空题Unit 8 Growing healthy,growing

Fill in the blanks with the given verbs in their proper forms(用括号中所给动词的适当形式填空) 【1】He_______ (be) back in two weeks. 【2】Martin_______ (read) a book in the library at the moment. 【3】What can we do if there_______ (be) no r

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七年级·英语·填空题Unit 8 Growing healthy,growing

Complete the sentences with the given words in their proper forms. ( 用括号中所给单词的适当形式,完成下列句子) 【1】Shanghai has _________________ a lot in the past 30 years. (change) 【2】You look much ________________ than before. (health) 【3

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七年级·英语·填空题Unit 8 Growing healthy,growing

Choose the right words to complete the sentences. (从括号里选择正确的单词,完成句子) 【1】You should have your meals_______ (regular, regularly). 【2】He used to_______ (smoke, smoking) in the bedroom. 【3】We should take care of ourselves an

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七年级·英语·选择题Unit 8 Growing healthy,growing

-___________ have a look at the high rises around here? - Good idea.

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七年级·英语·选择题Unit 8 Growing healthy,growing

You should know how ____________ a computer.

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七年级·英语·选择题Unit 8 Growing healthy,growing

- My sister is not interested in maths. -______________________.

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七年级·英语·选择题Unit 8 Growing healthy,growing

Did your father _______take a walk after supper?

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七年级·英语·选择题Unit 8 Growing healthy,growing

He is so rich that he has got ____________ten cars.

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七年级·英语·选择题Unit 8 Growing healthy,growing

- I eat __________ vegetables and __________ meat than I did last year. - That's why you're so fit.

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七年级·英语·选择题Unit 8 Growing healthy,growing

Last year, I always got bad cold because I _________ too __________ exercises.

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