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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·填空题不定式

设计师们欣赏各种各样的艺术作品. ______

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八年级·英语·填空题祈使句

______( learn) English is fun.

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七年级·英语·填空题there be 句型

The trees are green . (对划线部分提问) ____________are the trees ?

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八年级·英语·选择题there be 句型

Drive slowly,Mary.______ is something ahead on the road.( )

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九年级·英语·单词拼写-单句过去完成时的被动语态

根据句意、中文提示或英文释义完成单词。 His ideas had been ______________(塑造)by his experiences during the war.

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九年级·英语·单词拼写-单句过去完成时的被动语态

根据句意及汉语提示完成单词 I realized I had been ________(愚弄)when I got to the party.

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九年级·英语·选择题过去完成时的被动语态

He didn't make ____________clear when and where the meeting would be held.( )

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九年级·英语·选择题一般现在时的被动语态

(2023九上·连云港开学考) —____ China International Import Expo(国际进口博览会) organized? —We organize it once a year.

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九年级·英语·选择题一般现在时的被动语态

(2022·天津)A lot of birds ______ in nature parks every year.

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八年级·英语·填空题语法

In a beautiful mountain village,a father named Edward and his 7-year-old son Bob lived in a small farmhouse. Edward was a hard-working (1)______ who worked on his land every day.Bob was a lively and innocent(纯真的)boy,and

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七年级·英语·句型转换语法

I like elephants . (对划线部分提问) ______ do you ______ elephants?

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七年级·英语·句型转换语法

They often swim in the river to take exercise (用now 改写句子) They ______ in the river to take exercise now.

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九年级·英语·填空题首字母阅读填空

Here is a letter from Obama,the USA president to his daughters. Dear Malia and Sasha, I know that you've both had a lot of (81)f these last two years,going to picnics,parades and state fairs,eating all sorts of junk food

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九年级·英语·选择题阅读排序

Guyu takes its name from the Chinese saying "rain produces hundreds of grains (谷)",which shows the between weather and farming.( )

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八年级·英语·填空题阅读排序

(an extract from Gulliver \’s Travels) I ran away from the huge living thing as fast as possible,and did not stop until I found myself in some fields.The grass was about seven metres high and the crops were about thirtee

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九年级·英语·填空题阅读表达

Changes are always connected with people.Many people have changed a lot than they used to be.They change themselves because of different reasons.Let\’s see the following people talking about their changes. Dave:When I wa

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九年级·英语·填空题阅读表达

A boy guarded the barrels(桶)in his father\’s winery(葡萄酒厂).Every morning,his father gave him a task of brushing the barrels and putting them in order,but the wind often blew the barrels here and there overnight. The boy w

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八年级·英语·填空题教育文化类阅读

Most young boys like spending time on things like video games,superhero movies and sports,but Ken,a 9-year-old boy from the Philippines,is spending his free time trying to start an animal shelter(收容所) for at-risk dogs. I

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八年级·英语·填空题逸闻趣事类阅读

Peterson was sitting at the door of his house.Then a man arrived and asked, "What are the people of this village like?" Peterson asked him, "Why do you ask so?" The man answered, "The people of my old village aren\’t fri

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八年级·英语·填空题逸闻趣事类阅读

Wendy is clever enough to achieve A grades in all her subjects. (保持原句意思) Wendy is ______ clever ______ she can achieve A grades in all her subjects.

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