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。
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
#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
Hello!My name (1)______ Helen.In the morning,I meet Ella and Emma at the school gate.I (2)______good morning to them.Ella has (3)______eraser.It is good.What color is the (4)______ ?It is white.Ella says to me, "Can you
查看题目详情 →
The sun starts shining when summer comes.(改为反意疑问句) The sun starts shining when summer comes, ____________?
查看题目详情 →
你们何不一起演奏这首曲子呢? ______play the song together?
查看题目详情 →
You can get lost in the______ (森林).
查看题目详情 →
Chen Jie:Hello,Mr Smith! Mr Smith:Hello,Chen Jie.(1)______ Chen Jie:I\’m fine,thank you.Mr Smith,this is my classmate,Peter.Peter,this is our English teacher,Mr Smith. Mr Smith:Hi,Peter.Nice to meet you. Peter:(2)______
查看题目详情 →
What's wrong with my son's _____? He can't see things clearly.( )
查看题目详情 →
They often help .( )
查看题目详情 →
Mike found a set of ________.( )
查看题目详情 →
Please reply in writing to this invitation by Friday,December 20 th . ______ (词性)
查看题目详情 →
(1)Four books are on the desk. ______ (2)Kevin\’s schoolbag is on the chair. ______ (3)Four pictures are on the wall. ______ (4)Duoduo is the name of a boy. ______ (5)Baseballs are under the bed. ______
查看题目详情 →
Bird-watching,or "birding",is a very popular hobby these days,and it\’s a great way of getting outside with nature.So how can you get started? What you need When you start,a good field guide (野外指南) will help you learn bi
查看题目详情 →
—Hello,I\’m Cindy and this is Tim. live next door. —Hello,nice to meet you.( )
查看题目详情 →
Kong Rong was a famous writer during the Han Dynasty (汉朝).He was considerate when he was only four. Kong had five elder brothers and a young brother.One day,their father bought lots of pears.Some of the pears were big an
查看题目详情 →
He often ______(study) at home at the weekend.
查看题目详情 →
My English book is on the sofa .(对划线部分提问) ______ is your English book?
查看题目详情 →
I am Maria.This is my room.I keep it tidy all the time.My bed is blue.It is in the middle of my room.A pair of blue shoes is under the bed.A box is under the bed,too.It is the home of my little cat.In my room,there is a
查看题目详情 →
写出划线部分在本句中所作成分. The weather is sunny . ______
查看题目详情 →
--How do you_______ "yellow" ? --Y-E-L-L-O-W.( )
查看题目详情 →
This is a book.(改为复数形式) __________________
查看题目详情 →
— the word,please. —Y-A-R-D,yard.( )
查看题目详情 →
题库使用说明
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。
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。