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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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句子分析,写出划线句子的句子成分. 示例: The US has a large population.(主语) She played much happier in her new house yesterday. ______
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在这次物理竞赛中,Kitty 犯的错误最少. ______
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I think game shows are ______,so I love watching them (enjoy).
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Nancy and John are both in Grade 8.According to the table,we know John Nancy.( )
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Yesterday my brother and I went to watch a soccer game.We watched our favorite teams(队),the Eagles and the Hawks. The seats were good and they were not far from the field(球场).We sat and enjoyed the game.But then we began
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Jim says we can stay in his house as long as we ______(使处于某种状态) it clean and tidy.
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He is very busy.He works eight hours a day.( )
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—How was your school weekend trip? —It couldn\’t be .We lost our way and it kept raining hard.( )
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Did you have fun_____on the beach last Saturday?( )
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Grace is ____________ girl in their class. 格蕾丝是她们班里最安静的一个女孩.
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Grace and Sarah are good friends,but Grace is quite ____________ Sarah. 格蕾丝和萨拉是好朋友,但是格蕾丝与萨拉很不一样.
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Hello,everyone!I\’m Jack Liu from Grade 7.Welcome to our school!It\’s not big,but it\’s great. Here\’s our library and our classroom buildings.The classroom buildings are next to the playground.They\’ re the perfect plac
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已经是初二学生的你,去过哪些城市?有哪些城市给你留下了深刻的印象?请根据下面的图表信息进行比较,写一篇英语短文,介绍你更喜欢的城市并说明理由. Dalian Beijing Location on the coast of Bohai in the north of China Population 7,500,000 22,000,000 history 40 years old 3000 years old Famous place
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跑酷(parkour)、飞盘(frisbee)、骑行(cycling)、皮划艇(kayaking)……这些刺激、时尚的运动正在中国快速风麾.请用英语介绍一款你所熟悉的城市运动,并谈谈自己的看法. 内容包括: (1)How do you play it? (2)Where and who do you play it with? (3)How often do you play it? (4)Why do you like it? 其它要
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假如你们班要举行一次主题为"My Life in Twenty Years"的英语演讲比赛.请根据下列提示用英语写一篇演讲稿.词数不少于70. 提示:1)Your future job; 2)Reasons for the job; 3)Living place in the future; 4)Free time activities in the future. My Life in Twenty Years What will m
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假设你叫李明,你校交换生 Ethan在阅读中国古诗词的过程中遇到了困难,他通过学校广播节目寻找共读伙伴.请你根据以下思维导图的提示,用英文写一封邮件,表示愿意成为他的共读伙伴,并提供帮助. 注意:(1)可在思维导图内容提示的基础上适当拓展信息. (2)不能照抄原文;不得在作文中出现真实校名和考生的真实姓名. (3)语句连贯,词数80左右.作文开头和结尾已经给出,不计入总词数,也不必抄写在答题卡上. Dear Ethan, I\’ve l
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Peter想要买一个带有四间卧室和一间厨房的大房子.(with) ______
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Look!The fish ______(swim) in the river.How happy they are!
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I got to the railway station late yesterday evening because of the traffic,but the train was still there.( )
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Once upon a time there was a smart man,he went to the sea to do his writing.He had a habit of walking on the beach before he began his work.One day he was walking along the shore.As he looked down the beach,he saw a huma
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