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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·选择题选择疑问句

—How shall we go for a picnic this weekend, by bus or on foot? — . It's far from here.

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九年级·英语·选择题动词的固定搭配

Please tell him ________ again.

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九年级·英语·选择题时态辨析

Look at the new park. It ______ by the workers last year.

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七年级·英语·选择题时态辨析

Mr. Lee usually ______ for a walk after dinner.

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七年级·英语·选择题时态辨析

It's one o'clock at night now. Most people ______.

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九年级·英语·填空题图表作文

假如你是Tom,你的父母已经去上海出差几天了,你一个人在家.请根据以下表格内容提示,以"Home Alone for the First Time"为题,写一篇英文日记,记录你今天的生活.表格如下: 你独自在家的原因 父母到北京出差几天 你今天的生活 上午:做运动、整理房间、洗衣服 中午:做简餐…… 下午:做作业、玩游戏…… 你此次经历的感悟 …… 作业要求: (1)可在表格内容提示的基础上适当拓展信息. (2)不得在作文中出现学校的真

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九年级·英语·填空题文学作品类阅读

32.What do Paperboy and House of Secrets have in common? A.They both tell honest people's stories. B.They both include some adventure stories. C.They both present a deep understanding of life. D.They both give advice on

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九年级·英语·填空题文学作品类阅读

My Favorite Sweater by Bonnie Highsmith Taylor My favorite sweater grew too small. I love that sweater best of all. My grandma made it when I was three. She made that sweater just for me. I picked the yarn(纱线),a special

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七年级·英语·选择题时态辨析

—What is your sister doing now? —She ______ a book in her room.

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七年级·英语·选择题时态辨析

My grandparents ______ in Tianjin ten years ago.

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七年级·英语·选择题时态辨析

—Where is Peter now? —He ______ volleyball on the playground.

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九年级·英语·填空题文学作品类阅读

A big umbrella Nancy:I saw seven girls in one umbrella and none of them got wet. Toney:Oh,that must be a very big umbrella. Nancy:No,it wasn't raining. A good boy Little Robert asked his mother for two cents (美分). "What

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九年级·英语·填空题文学作品类阅读

Characters:Sandy,Rose,Jane,Justin,Mrs.Lin Setting:A middle school Rose:Sandy,follow me after class. (They go to the office together.) Rose:You are often absent and your grades are not as good as before.What's happened to

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九年级·英语·填空题文学作品类阅读

The swing How do you like to go up in a swing, Up in the air so blue? Oh,I do think it the nicest thing Ever a child Can do Up in the air and over the wall, Till I can see so wide (广阔), River and trees and cattle and all

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九年级·英语·填空题文学作品类阅读

GONE WITH THE WIND Author(作者):Margaret Mitchell ¥25 (in bookstores)¥18 (online) It is a story that happened in the American Civil War(美国内战).Scarlett O'Hara is a woman in the story who is full of energy(活力).She is strong

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八年级·英语·填空题阅读表达

When you are feeling unhappy or forget how great you are,there are six ways to make you feel good about yourself. 1.Look in the mirror and say to yourself,"I am a special person and there\’s no one in the world like me.I

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八年级·英语·填空题阅读表达

The French writer Annie Ernaux won the Nobel(诺贝尔) Prize for Literature in October,2022.She became the 17th woman to receive the prize and the 16th French winner of the prize.She has written more than 20 books and won man

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七年级·英语·填空题史地常识类阅读

After two and a half weeks,the Paris 2024 Olympics closed in France on Aug 11.A total of 10,500 athletes from over 200 countries and regions(地区) competed at 329 events in 32 sports.They left the world with exciting and w

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七年级·英语·填空题史地常识类阅读

How many different languages are there in the world today?There are more than 5,000 different languages.Of them,English is very popular(流行的). People in many countries speak English.About 400,000,000 people speak English

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八年级·英语·填空题史地常识类阅读

Everybody has his favorite cartoon character,and here we have some of the most popular ones with children!Now,let\’s meet them one by one. First,there\’s Po from Kung Fu Panda.He\’s a lovely panda and loves to eat dumpli

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