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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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The 2024 Paris Olympic Games ______ (hold) in July.
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I\’m Andy.Parents love us best in the world.As children,we should do something to show our love to them.My family is full of love.I love my parents and I have my own ways to show my love.Here are a few of my ways.I think
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(1)Coffee is drunk by the largest number of people in the world. (2)Tea has a history of about 1,000 years. (3)In ancient China,tea was used as a kind of medicine. (4)Tea is produced mainly in Fujian,Zhejiang and Yunnan
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His name is John Brown.John is his name and Brown is his name.( )
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Life is difficult sometimes.What should you do when your parents are embarrassing (使尴尬) you in front of your friends?Or what if you see what looks like a classmate taking away someone\’s headphones?In our social Q\’s col
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—Would you mind taking these test papers to the meeting room? — .( )
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True friends are not easy to find,so we should do our best to find a real friendship and keep it. When we are with our friends,we should try to make them closer to us.Smiling is one of the easiest ways.People like to see
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Many people today like exercise.Some like to run,and some like to walk.Others dance or play ball games.They do different kinds of exercise.Why do people like exercising?It\’s good for their health.And exercise helps make
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A:Hi,Wu Ming!(1)______ B:Hi,Laura!Pretty good!I\’m looking forward to the Dragon Boat Festival. A:The Dragon Boat Festival?(2)______ B:OK.It\’s a traditional Chinese festival.It\’s on the fifth day of the fifth lunar mon
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Last summer,Kelly went to a fishing village for vacation with her parents.As soon as she arrived,she ran to the beach with her watercolors,brushes and paper. Fishermen were busy fishing.Seabirds were flying around.Just t
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Nancy\’s Gym Keep fit!Lose weight! $25/hour Opening time:Saturday and Sunday Tel:455--6223 Ice World Have fun skating here! $20/hour for children $30/hour for adults Tel:886--8252 Water World Open:9 am to 9 pm every day.
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在北京有很多事情可以做.(lots of) ______
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I will never forget the day____ we spent in the old town with small houses.( )
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Be quiet!The other students ______at the moment.( )
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Can you finish the work better with________ money and ______people?.( )
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______ beautiful weather it is today!Let\’s go camping.( )
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-Do you need any help? -No, thanks. We a lot of support since I came to Chengdu.( )
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Please remember_______the door when you leave.( )
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What Do You Want to Be When You Grow Up? Have you ever thought about what you want to be when you grow up?Do you want to be a singer,a dancer or a writer?Almost everyone has his or her favorite job when they are young.Ou
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