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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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对于在校学生体质健康调查的结果表明,有的学生体质健康不容乐观.学校倡议学生积极参加体育运动,养成良好的锻炼习惯.请以Important Exercise为题,向同学们进行宣传. Important Exercise Exercise is important to our students.__________________________________________________________________________
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Jane是一名十六岁的中学生,American Teenager Magazine问了关于她的日常习惯.请根据表格信息写一份关于她的日常习惯的报告. 日常习惯 频率 锻炼 每天(至少30分钟) 帮忙做家务 一周一次 熬夜 几乎不 要求:(1)字迹工整,语法正确,逻辑清晰,结构完整,语言得体; (2)不少于30词.
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Our family went to the Yellow Stone National Park last summer vacation.Our son,Tom,wanted to see bears there.And what an experience it was! When we got there,we put up our tent and went to explore(探险).As we returned,we h
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—I hear that Annie has gone to the Shanghai Disneyland for her holiday. — Oh,that\’s great!Do you know when she ______( return).
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It often _______ here in winter.Look!It _______ again!( )
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If it________tomorrow,we\’ll have a barbecue in the garden.( )
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阅读短文回答下面问题. We all have our own ways of sharing our life experiences with others. Photographers use cameras,artists use brushes,musicians use songs and writers use stories. Spencer Johnson\’s story Who Moved My Cheese?sh
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Hello,boys and girls!I\’m Dave White.Here is my information card.Do you want to be my friend? Name:Dave White Date of birth (出生日期):2011-9-1 From:London,England Now lives in:Beijing,China School:Bright Hill School I like:
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something important,to,you,has,she,tell ______.
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If it _______tomorrow,we\’ll go roller-skating.( )
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我们在上午9:50休息. We have our morning ____________9:50 a.m.
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To my great surprise,the story of the famous musician _______ differently on the Internet.( )
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---May I play soccer with Tom now,Mum?---When all the homework ______,you may go out to play.( )
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Sixteen-year-olds to go to an Internet bar.( )
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---How many students are there in each group? ---Usually each group _______ six students in our class.( )
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Xuzhou Department Store ________in 1911and it has become a cinema in recent years.( )
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书店在银行的旁边. The bookstore is ______.
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-Sixteen-year-olds should ______ to drive.( )
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Great changes in our hometown in th past five years.( )
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--What fine weather it is today!We will go on a picnic.Will you join us? --I will if my homework _______.( )
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