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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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七年级·英语·选择题Unit 8 Fashion

—Do _________ like going to ___________? —I don’t know.

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七年级·英语·选择题Unit 8 Fashion

—__________ your raincoat. It’s raining hard outside. —Mum, I don’t like _________ the raincoat.

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七年级·英语·选择题Unit 8 Fashion

—I want a pair of new shoes for the coming New Year. What about this _______? —Why not ________?

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七年级·英语·选择题Unit 8 Fashion

—I don’t know ___________ for the party. —You look so good. I think this pair of blue jeans ______ the pink T-shirt very well.

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七年级·英语·填空题Unit 7 Shopping

【题目】根据句意选择合适的动词，并用其适当形式填空，使句子通顺。 watch lie wait design study 【 1 】【 1 】 —Who _______________ on the ground over there? —An old man is. 【 2 】【 2 】 —Hi, Peter! What bus ____________ you ____________ for? — No.3 bus. 【 3 】

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七年级·英语·单词拼写Unit 7 Shopping

【题目】根据句意和提示写单词，完成句子。【 1 】 His father and mother are _______ （都） teachers in our' school. 【 2 】 I can _______ （借） my bike to you. 【 3 】 Is Miss Li _______ （受欢迎） among the students? 【 4 】 His father never wears a _______

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七年级·英语·阅读理解Unit 7 Shopping

Where does the wind come from? What makes the wind move all the time? Scientists tell us that it is the sun that makes it move, and makes it blow. When the sun shines on the earth, it makes the earth hot. Then the earth

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七年级·英语·阅读理解Unit 7 Shopping

For most people, the word "fashion" means "clothes". But some people may ask the question, "What clothes are in fashion?" Of course there are fashions in many things, not only in clothes. There are fashions in holidays,

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七年级·英语·阅读理解Unit 7 Shopping

A lot of boys and girls in America are wearing the same clothes and many of them have long hair. So it is often difficult to tell whether they are boys or girls. One day an old man went for a walk in a park in Washington

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七年级·英语·选择题Unit 7 Shopping

--I'm thinking about buying a lantern,_________ is a good one? --Less than 20 yuan, I think. You can make it out of pumpkins.

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七年级·英语·选择题Unit 7 Shopping

—The passage is easy. There are ____ new words in it. —Yes, but I don’t think ______can understand it.

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七年级·英语·选择题Unit 7 Shopping

--What should we do now, Mr. Clark? --Please turn to Page _________and look at the __________ picture.

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七年级·英语·选择题Unit 6 Food and lifestyle

---Is there _______ in today’s newspaper? ---No.