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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; \

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#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·单词拼写-单句Unit 2 I'd like some noodles.

They are twins.They are of the same a______.

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七年级·英语·单词拼写-单句Unit 2 I'd like some noodles.

There are ten candles on the birthday c______.

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七年级·英语·单词拼写-单句Unit 2 I'd like some noodles.

You can also o______food from our restaurant on the phone.

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九年级·英语·阅读理解Unit 7 Films

“Neville is my brother,” Sir Henry continued,”about five years ago, my brother and I quarreled, Soon after this, our father died. I am the elder son, and I got everything. I wanted my brother to apologize to me. He didn’

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九年级·英语·阅读理解Unit 7 Films

B Hollywood is a neighbourhood in Los Angeles,California. It used to be the historical centre of movie studios and movie stars. And the word "Hollywood" is often used as a metonymy( 转喻 )of American cinema, But these are

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八年级下·英语·填空题Unit 6 Pets

Of all the students, Mary did (careful) in the final exam.

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八年级下·英语·填空题Unit 6 Pets

Grandpa is sleeping. Please speak (quiet).

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八年级下·英语·填空题Unit 6 Pets

As we know, it's difficult to live in a foreign country, (especial) if you can't understand the language there.

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八年级下·英语·填空题Unit 6 Pets

Finally, they walked through the forest (safe).

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八年级下·英语·填空题Unit 6 Pets

She does not study so (good) as I do.

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八年级下·英语·填空题Unit 6 Pets

Which animal runs (fast) in the world?

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八年级下·英语·填空题Unit 6 Pets

Li Lei doesn't study so (care) as his sister.

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八年级下·英语·填空题Unit 6 Pets

Lucy is an active student. She answers the teachers' questions (active) than any other student in her class.

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九年级·英语·书面表达Unit 2 Colour

【题目】 书面表达 写一篇颜色决定人心情的英语短文。包括以下要点: 1. 颜色分为冷色和热色; 2. 两种颜色的作用; 3. 选择颜色的重要性。 词数: 80 左右。 ________________________________________________________________________________________________________________________________________

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九年级·英语·完成句子Unit 2 Colour

【题目】 完成句子 【 1 】 红色和白色是好的搭配,因为有力量的红色能平衡沉静的白色. Red and white are _______________ ,as the powerful red ___________ the calm white. 【 2 】 当你犹豫不决的时候,红色可以有助于你做决定. This may help when you ________________________ a decision. 【 3

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九年级·英语·补全对话Unit 3 Language in use

A: Mr John, you often help children. 【 1 】 B: Yes ,of course. Children often write to me and ask me how to solve their problems. A: 【 2 】 B: Many can’t decide when to study and when to play. I think they should learn to

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九年级·英语·句型转换Unit 3 Language in use

Ⅱ.句型转换 【1】My watch didn't work.(改为同义句) My watch ______ ______. 【2】“Don't play in the street!” he warned me.(合并为一句) He warned me ______ ______ ______ in the street. 【3】He won't be busy.He will take a walk.(用if合并成一句) _____

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九年级·英语·选择题Unit 3 Language in use

The famous movie star didn't refuse ______ the poor children.

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九年级·英语·阅读理解Unit 2 If you tell him the truth now, you will show that you are honest.

【1】(A)用一个适当的英语单词替代文中②处划线部分No matter what: . (B)猜猜文中④处划线部分distance的汉语意思: . 【1】将文中⑤处的划线部分翻译成汉语: . 【1】根据文中⑥处的汉语提示,用英语将句子补充完整: . 【1】将文中①处划线部分合并成一句: Please tell me . 【1】写出文中③处划线部分的同义句:

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九年级·英语·选择题Unit 2 If you tell him the truth now, you will show that you are honest.

We will have an exam ______ the month.

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