题霸题霸学习平台

初中免费试题库,先看题再决定怎么练

游客可浏览题目与选项;登录后可免费组卷并下载学生卷。答案解析、练习判分和错题本由 VIP 解锁。

高频错题

近期常错题排行

根据匿名练习记录整理

#1 · 常错题

#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|}=

精选练习题目

全部题目

清除筛选
八年级·英语·填空题Unit 6 Ancient stories

Everyone has to keep on______(stay)here until the teacher gives us permission to leave.

查看题目详情 →

八年级·英语·填空题Unit 6 Ancient stories

Don't give______(strange)your telephone number. It's dangerous to do that.

查看题目详情 →

八年级·英语·填空题Unit 6 Ancient stories

She was______(faithfully)to her husband all her life.

查看题目详情 →

八年级·英语·填空题Unit 6 Ancient stories

Everyone has______(responsible)to protect animals.

查看题目详情 →

八年级·英语·填空题Unit 6 Ancient stories

Tell me the______(reasonable)that you are late again.

查看题目详情 →

八年级·英语·填空题Unit 6 Ancient stories

Learn to make and respond to______( suggest).

查看题目详情 →

八年级·英语·单词拼写/单词释义Unit 6 Ancient stories

One day, Mr. Hill arrived (1) London Airport after a three-week holiday in Paris. He usually had a beard(胡须).It was hot there, so he cut it off. But his passport(护照)photo (2) (show)him with his beard. An officer looked a

查看题目详情 →

八年级·英语·阅读理解Unit 6 Ancient stories

The Greek states often fought with each other. Sparta and Athens fought a long war, called the Peloponnesian War, from 431 to 404 BC.Sparta won at last. When the Greeks were under attack of a foreign enemy, they forgot t

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

A lot of______(Britain)students hope to visit China one day.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

I can't wait______(visit)him in Australia.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

The foreign guests ate delicious food and visited______(place)of interest in Beijing.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

Lang Lang is a very______(success)piano player.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

Chinese people usually eat things with______(chopstick)and spoons.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

We should love our parents by______(respect)them.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

It's my great honor______(introduce)myself to you.

查看题目详情 →

八年级·英语·填空题Unit 5 Educational exchanges

I'm looking forward to my first______(education)visit to America.

查看题目详情 →

八年级·英语·单词拼写/单词释义Unit 8 Natural disasters

数日后,这个年轻人找到了出路。 ______,the young man ______.

查看题目详情 →

八年级·英语·单词拼写/单词释义Unit 8 Natural disasters

当墙开始坍塌时,人们都恐惧地尖叫了起来。 When the walls began to ______,people all ______.

查看题目详情 →

八年级·英语·单词拼写/单词释义Unit 8 Natural disasters

在那道墙塌陷后,心脏便很快停止了跳动。 After the wall ____________ his ______ soon stopped ______.

查看题目详情 →

八年级·英语·单词拼写/单词释义Unit 8 Natural disasters

教学楼摇晃了2次,学生们惊恐的跑了出去。 The classroom building ______ twice ,and the students ran out ____________.

查看题目详情 →

题库使用说明

从一道题开始,形成可复盘的练习记录

按真实条件找题

可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。

题目公开,学习闭环由 VIP 解锁

题干与选项可直接浏览;答案解析、判分、错题本和针对训练需要 VIP。

再转成专项训练

发现薄弱知识点后可继续组卷或练同类题,把一次搜索转成后续练习和错题复盘。