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#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|}=
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七年级·英语·填空题宾语从句
What ______（其他） can you see in the park?Please tell me.
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八年级·英语·填空题新闻报道类阅读
Baduanjin is a kind of popular exercise in China.It started in Song Dynasty（朝代）,and has a history of more than 800 years. Baduanjin has eight simple movements.Each movement is slow and helps to keep a different part of y
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九年级·英语·填空题新闻报道类阅读
Chinese does not have any Latin roots like many of the languages used in the western world,such as English,French and German.So it\’s said that Chinese can be difficult （1）______learn.It has thousands of characters,which
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七年级·英语·填空题新闻报道类阅读
Do you know why Al is being used to ______ music? （creative）
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九年级·英语·填空题阅读排序
根据下面每段话的陈述内容，从方框中选出各段恰当的标题． “When a man is tired of London，he is tired of life．“said Dr．Johnson．You can never be bored in London，because there is so much to do． 66． 67． 68． 69． 70． ．
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八年级·英语·填空题逸闻趣事类阅读
D.J.Smith wanted to go to school.When he first had the idea,everyone in his town thought he was crazy. "Are you kidding?Go to school at your age?" said one man. "That\’s right.You are blind without your glasses on," said
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七年级·英语·填空题逸闻趣事类阅读
Dave\’s uncle died and left Dave millions of dollars.Dave became rich（富有的）and planned to set up his own company（公司）to sell houses. He found a nice new office in a tall building and decided to rent（租）it.One morning,he was
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八年级·英语·填空题逸闻趣事类阅读
One day in the morning,a little girl made her daily trip to school on foot though there were many dark clouds in the sky.When school was over,the little girl walked home carrying nothing in her hands.On the way home,wind
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九年级·英语·选择题状语从句
---Why didn't you try your best to get on the subway （地铁）? ---I tried to,but it started moving _______ I could get on it．（ ）
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八年级·英语·填空题宾语从句
Welcome to our food festival! We will have our school food festival next Friday afternoon.Come and enjoy it! The food festival will begin in the school dining hall at 2 p.m.and end at about 5 p.m.There will be fifty tabl
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七年级·英语·选择题宾语从句
You don\’t need to talk to the class teacher.I_________him everything already.（ ）
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八年级·英语·填空题宾语从句
tomorrow ______
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七年级·英语·填空题句型转换
The boy wears glasses.He looks smart.（同义句转换） The boy ____________ looks smart.
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七年级·英语·句型转换语法
It takes me about 20 minutes to get to school every day. （改为同义句） ______ takes me 20 minutes every day.
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九年级·英语·句型转换语法
What do you think of Canton Tower？ （ 改为同义句） ______ do you ______Canton Tower？
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八年级·英语·填空题历史文化类阅读
Did you climb a tree when you were young?How did you feel?What if you have a"tree climbing class""at school?A primary school in Hangzhou has opened a "tree climbing class" recently.Quite a lot of people are interested in
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九年级·英语·填空题历史文化类阅读
请阅读下面语篇,从每小题所给的A、B、C三个选项中,选出一个最佳选项. In 2024,Chinese New Year falls on February 10.This year is the Year of the Dragon.It is said that people born in the Year of the Dragon are full of luck and self-confidence.The dragon
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九年级·英语·选择题历史文化类阅读
It\’s so dangerous to swim in the lake.Parents should their children it.（ ）
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七年级·英语·填空题句型转换
It\’s time for dinner．（ 同义改写 ） It\’s time____________dinner．
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九年级·英语·填空题阅读排序
We talk every day．When we have good news，we like to share it with our good friends and when something terrible happens，we make it known to others soon．But can you imagine that a tree can talk and share news too？Of course
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