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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 3 How was your school trip?

用括号中所给单词的适当形式填空 【1】Carol didn't ride a horse,but she _____(milk)a cow. 【2】The ______(farm)worked on the farm all day. 【3】The man ______(grow)many apple trees last year. 【4】Carol said she saw something in the room,but I c

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七年级·英语·单词拼写Unit 3 How was your school trip?

根据句意及汉语提示完成单词 【1】Are there any ____(奶牛)on the farm? 【2】My grandparents are ____(农民).They live in a village. 【3】—Did you see any chickens? —Yes, I saw _____(相当)a lot. 【4】Mike learnt to ride a _____(马)last week. 【5】How was

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七年级·英语·句子翻译Unit 2 I'd like some noodles.

世界各地的生日食品可能不同,但想法却是一样的. Birthday foods around the world may______,______the ideas______the same.

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七年级·英语·句子翻译Unit 2 I'd like some noodles.

这种面条里面有胡萝卜吗? ______any carrots in this kind of noodles?

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七年级·英语·句子翻译Unit 2 I'd like some noodles.

你想要西红柿鸡蛋汤还是牛肉汤? Would you______tomato and egg soup______beef soup?

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七年级·英语·句子翻译Unit 2 I'd like some noodles.

我想要一大碗粥. I'd______a large______porridge.

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七年级·英语·任务型阅读-多任务混合Unit 2 I'd like some noodles.

Do you know McDonald's?It is a large fast food restaurant. Would you like to eat the best(最好的)hamburgers and other specials?McDonald's is a good place to enjoy them. In McDonald's,there are many kinds of hamburgers,like

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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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七年级·英语·阅读理解Unit 2 daily life

Many middle school students don't know how to spend their free time. When they have holidays, they always have nothing to do and feel bored. Some may play computer games all day long and some may stay in bed and sleep al

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七年级·英语·填空题Unit 2 daily life

My name is Millie. I am 14 years old and I study in No. 1 Middle School of our town, I usually ________________ up at 6: 15 in the morning. I have breakfast ________________ home, but I have lunch at school. My school is

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七年级·英语·填空题Unit 2 daily life

My name is John. Brown. I'm from the US. I'm 12 years old, I'm short and fat. I have short hair. I live with my family in a flat close to some 【 1 】 (mountain). My mum is from 【 2 】 (Japanese). She is 【 3 】 Art teacher.

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七年级·英语·阅读理解Unit 1 making friends

Bill is an American boy, but he lives with his parents in Shenzhen now. Today he is very happy, because he is going to a Chinese school for the first time. He gets up at 6: 30 a. m. After having breakfast with his parent

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七年级·英语·填空题Unit 1 making friends

I have a good pen pal. She is from ________________ America. She is fifteen years old. ________________ name is Carol. She is a nice girl ________________ brown hair. We meet on the ________ and we usually ______________

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七年级·英语·完成句子Unit 1 making friends

单词拼写(词汇运用) 【1】He lives far a________ from his school. 【2】Mrs Green is a kind lady. She is always f________ to us. 【3】The s________ of the wind makes me feel afraid at night. 【4】Uncle Wang is an e________ of this company.

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七年级·英语·阅读理解Unit 4 seasons

Somebody says that it is raining cats and dogs. We know it means it is raining heavily. Here you can know why people say like this. There are many large rats (老鼠) in a country. People need cats. But there are many mounta

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七年级·英语·填空题Unit 4 seasons

Holidays in China There are many holidays in China. Holidays are very fun. I can play with my friend _________________ holidays. January 1 is New Year's Day. I like _________________ shopping on that day. March 3 is Kite

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七年级·英语·填空题Unit 4 seasons

填空题 【1】Look at the ________ (hunger) boy. He wants to eat something. 【2】Nancy is a ________ (beauty) lady. She always wears nice skirts. 【3】It's raining ________ (heavy) outside. 【4】It is not fair to ________ (kick) anot

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七年级·英语·选择题Unit 4 seasons

________ is nice ________ a cup of coffee in the morning.

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