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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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八年级·英语·填空题选择疑问句
He is 11 years old now.（改为同义句） He is ____________boy now.
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九年级·英语·填空题选择疑问句
you,best,which,do,experiment,like ______?
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七年级·英语·填空题选择疑问句
These are my rulers． （变成一般疑问句） ______these ______rulers?
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八年级·英语·填空题新闻报道类阅读
The new bed just ______ （可容纳） in the bedroom.There is no more space.
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九年级·英语·填空题宾语从句
A:What is Mary doing? B: ______.
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九年级·英语·选择题宾语从句
—I\’m going to buy a car.Any advice,Cindy? —Well,it depends on .If money isn\’t a problem,you can buy a BMW.（ ）
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九年级·英语·选择题宾语从句
-Would you like to tell me ______? -Sure．Practice makes perfect．（ ）
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九年级·英语·填空题文学作品类阅读
Coffee Our dad's just bought a coffee machine， The most unusual thing you've ever seen． It grinds（碾碎） the beans and it heats the milk． The coffee comes out as smooth as silk． He makes cappuccino with chocolate on top． Th
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九年级·英语·填空题社会文化类阅读
A.and B.what C.providing D.excited E.from F.if "Thanks for our government.Thanks for （1）______us with such a good training program.The training program will help us live well.I will study hard and learn different skills.
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八年级·英语·填空题社会文化类阅读
Children\’s games in ancient China During ancient times,children didn\’t have smart phone,iPad or computer to entertain them.Instead,they came up with interesting games to play in their childhood.Let\’s take a look. Play
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七年级·英语·填空题社会文化类阅读
Names are important for Chinese people.Parents choose a good name for their baby.They think that the good name will bring good luck to their child. Chinese surnames（family names） Chinese surnames come first.They are diff
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七年级·英语·填空题宾语从句
We are going to ______ （have） a farewell party.
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九年级·英语·选择题宾语从句
-You can use Facebook to talk with Vivian on the Internet. -I know.But I have never used it before.Can you tell me ?（ ）
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八年级·英语·填空题新闻报道类阅读
THE SPACE BLOG DAY ONE Hello!This is Elena.Luca and I were the very lucky （1）______ （winner） of a competition to become the first children to go into the space.We\’ re travelling with two astronauts called Leo and Melita
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七年级·英语·填空题新闻报道类阅读
Now,many people cannot live without the Internet（因特网）.Here is a Family Questionnaire（问卷） about the Smith family.After reading it,you can learn what they often do on the Internet. Family Questionnaire（问卷） The Smith Family
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九年级·英语·填空题新闻报道类阅读
Harbin is in the northeastern part of China.It is a beautiful city with a long history.The temperature there is very low in winter.Harbin is famous for ice and snow.Every year visitors from all around the world come to v
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七年级·英语·句型转换语法
Betty,are you going to check your email？ （作否定回答） No, ____________.
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八年级·英语·填空题社会文化类阅读
It seems that students have different ways to spend their free time.Let\’s have a look. Kate and Julie are good students at school and they spend a lot of time （1）______.They spend most of their free time doing their hom
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八年级·英语·填空题社会文化类阅读
go,travel,healthy ,good,housework,to ,student ,play,late,are What do（1）______usually do in their free time?Here（2）______ the result（结果） of our survey.Only fifteen percent（百分比） of the students often help with（3）______at h
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八年级·英语·填空题表语从句
A Basketball Game China\’s National Team VS USA National Team Place:Beijing Stadium Time:8:00 p.m.this Friday Price: ¥100 Know more by calling 36643378. Books on Sale Most of the things are ＄1 each.5,000 books,videos to
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