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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·句子翻译Unit 3 Family life
我们总是相互支持，关系亲密．（support；relationship）______
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八年级·英语·单词拼写/单词释义Lesson 18 The Mystery Writer
全神贯注______
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八年级·英语·单词拼写/单词释义Lesson 18 The Mystery Writer
自学______
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八年级·英语·单词拼写/单词释义Lesson 18 The Mystery Writer
因…而出名______
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八年级·英语·单词拼写/单词释义Lesson 18 The Mystery Writer
把……翻译成…______
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八年级·英语·单词拼写-单句Lesson 18 The Mystery Writer
Can you______ （翻译） this English sentence into Chinese？
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八年级·英语·选择题Lesson 18 The Mystery Writer
--Where's the key to the car，Li Tao？ --I can't remember ____ last night．（ ）
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八年级·英语·选择题Lesson 18 The Mystery Writer
Can you tell me ______ when I called you？（ ）
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八年级·英语·选择题Lesson 18 The Mystery Writer
Please translate the sentence ______ Chinese． I can't understand it．（ ）
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七年级·英语·阅读理解Unit 11 Electricity
One evening ， Daisy said， "I'm going to buy a packet of sweets． Does anyone want anything？" Benny， Daisy's brother， replied， "Can you get me a packet of electricity？" "Yes， I can，" said Daisy． Then she went out． Benny la
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七年级·英语·书面表达Unit 11 Electricity
Highfield School rules Students must： Students must not： 1． wear their school uniforms every day． 5． eat or drink in the classroom． 2． arrive at the school on time． 6． run in the building． 3． listen to the teacher carefu
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七年级·英语·解答题Unit 11 Electricity
Earth Hour first started in Sydney Australia in 2007． Millions of people switched off their lights and electrical appliances for one hour． Since then， Earth Hour has got wide support around the world． On 31 March 2012， h
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七年级·英语·解答题Unit 11 Electricity
Did you know that some electric lights use less energy than others？ These special lights use only half the amount of electricity compared to other lights． They're as bright as the other ones and they last longer， too． Di
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七年级·英语·解答题Unit 11 Electricity
Until 1915， most homes did not have electricity so there were no fridges yet． A few Very rich people used ice to keep their food fresh． People had no TVs or radios， either． There were a few bikes and cars， but most peopl
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七年级·英语·解答题Unit 11 Electricity
Yesterday， from 11a．m． until 8p．m．， all the electricity was off in our city． The lights went out． The underground stopped． No one expected it． It was Saturday． Many people were at home， in the streets or in department st
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七年级·英语·任务型阅读Unit 11 Electricity
Read the article about traffic rules． When you drive， there are some things you must do and some things you mustn't do． For example， when you come to a traffic light， a red light means you must stop． A （A）____ light mean
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七年级·英语·选择题Unit 11 Electricity
The girl's dress looks ________．（ ）
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九年级·英语·任务型阅读Unit 6 TV programmes
阅读表达 A TV programme has become popular in China recently. It has made people all over China become interested in writing Chinese characters（汉字）. The increasing use of computers and smart phones has left most young people
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九年级·英语·阅读理解Unit 6 TV programmes
My friend Matt and I arrived at the Activity Centre on Friday evening. The accommodation wasn't wonderful，but we had everything we needed (beds，blankets，food)，and we were pleased to be out of the city and in the fresh ai
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八年级·英语·选择题Lesson 17 A Detective Story (II)
The boy is too busy _____with the toys _____his mother come back home．（ ）
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