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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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九年级·英语·填空题社会文化类阅读

weigh heavy early nothing course carry everyone like correct lay expression A psychologist (心理学家) stood in the front of a classroom.She was giving a(an) (1)______ in psychology,and all the students listened carefully in

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八年级·英语·填空题新闻报道类阅读

Paris held the 33rd Olympic Games in 2024. (1)______ were four exciting sports events first appearing at the 33rd Olympic Games.They are really popular with young people. Surfing is an outdoor watersport.It needs suitabl

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九年级·英语·填空题新闻报道类阅读

中国高铁世界闻名.(完成译句) China is____________ its high-speed railway in the world.

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九年级·英语·填空题主谓一致

like ______

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九年级·英语·填空题文学作品类阅读

My favorite great book is The Adventure of Tom Sawyer by Mark Twain.Tom lives with his aunt Polly in a quiet street of St.Petersburg,Missouri.He's a lively and clever young boy,and he finds himself in many exciting adven

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七年级·英语·选择题逸闻趣事类阅读

--____________is he? --He\’s my brother Paul.( )

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八年级·英语·填空题逸闻趣事类阅读

Directions:It was your birthday last Sunday.Your uncle came to your family birthday party.He gave you a book as a birthday gift.Write a message to thank him for coming to the party and to thank him for the book.The messa

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八年级·英语·填空题逸闻趣事类阅读

In a small Chinese town,there lived a poor young man named Ma Liang.He loved painting.One night,an old man with a long beard(胡子)visited Ma Liang in a dream.He gave Ma Liang a paintbrush. "Use this magic paintbrush to hel

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九年级·英语·选择题一般现在时的被动语态

(1分)(2023·呼和浩特模拟)—Can I go out to play badminton, Mom? —Look, your bedroom is in a mess. You can't go out until it .

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九年级·英语·选择题一般现在时的被动语态

(2分)(2023·泗洪模拟)—Mrs. Doreen, when shall I show my short video called "Chinese Celebration for New Year"? —As soon as it_________tomorrow.

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七年级·英语·填空题阅读判断题

Mascots for Asian Games A Ru,A Yi,A Xiang,A He,Le Yangyang Vichuon,Chumuco,Barame Bhin Bhin,Ika,Atung Chenchen,Congcong,Lianlian 16th 17th 18th 19th 2010 2014 2018 2023 Guangzhou Inchon Jakarta Hangzhou China South Korea

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七年级·英语·填空题阅读判断题

We had a terrible school trip last weekend.Some students were late.Then we waited half an hour for the school bus,but it didn\’t arrive.Finally,our teacher took us to take the subway(地铁).It took us about an hour.After we

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八年级·英语·填空题阅读判断题

Jane got s ______ after standing in the cold for three hours.

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八年级·英语·填空题科普知识类阅读

Watching short videos (视频)is becoming more and more popular among students,(1)______they are easy to watch and kind of interesting.However,there are some (2)______when they watch the videos. Some short videos are not for

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八年级·英语·填空题社会文化类阅读

Chengdu is small than Beijing. (1)______ It\’s famous as its many delicious food.Shanghai is a big city in China. (2)______ There is lots of buildings, (3)______ busy streets but large malls(商场).(4)______ It has a popula

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八年级·英语·填空题社会文化类阅读

People from all over the world do different things to relax themselves in their free time.Which do you think is interesting? •Use the Internet People from Canada spend about 43.5 hours online every week,8 hours longer th

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八年级·英语·填空题新闻报道类阅读

Wang Xiaojun,49,has a small hotel in Pingyao,a city in Shanxi.She opened it in 2002.This January,Wang got an email from her friend Bernard in France. "I just want to tell you how much I miss Pingyao,you and your family.I

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九年级·英语·填空题新闻报道类阅读

The Feynman Technique(费曼学习法) was developed by Nobel Prize-winning physicist Richard Feynman.It\’s a study method that helps students learn by teaching others. The Feynman Technique has been one of the most effective(有效的)

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七年级·英语·选择题状语从句

With age wisdom.( )

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九年级·英语·选择题状语从句

His father has worked in this factory __________ he came here in 2008.( )

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