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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|}=
精选练习题目
I helped him move some______ (shelf) in his bedroom.
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My stutter (口吃) had always been much of a problem.I'd had so many specialists for my speech over the years.As I walked down the hallway to meet a new one,memories popped in my head of how painful being a kid who stutters
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enough,to,it,enough,do,have,time,do,well,you(连词成句) ______
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Perhaps the man in blue is a worker.(改写句子,意思不变) The man in blue______a worker.
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Tom managed to save the old lady from the burning house.(改写句子,意思不变) ______
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Technologies can be part of everyday education in the future.(为一般疑问句) ______
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The Palace Museum looks magnificent .(用what对划线部分提问) ______
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I______to speak English at that time.(想这女孩不会)
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They're______.(谈论他们的希望)
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Flow like the river of change Little stream ran down from a high mountain through many villages and forests. Then it reached a desert. “I went through so many difficulties. I should have no problem crossing the desert,”
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翻译句子 【1】他总是惦记着她。(on one’s mind) _________________________________________________________________ 【2】交通堵塞产生了大量的污染。(a great deal of) _______________________________________________________________ 【3】即使失败10次,我也不灰心。(lose h
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I was once a fat girl . I weighed 336 pounds and looked as big as my fridge. I was never ______ it. But one day I had a medical examination(体检). The _____ told me that I was having heart trouble. It _____ me up. I began
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用所给单词的适当形式填空 【1】Who ____________ (score) the goal for Class 1? 【2】He doesn’t feel he is cut out to be a _____________ (lead). 【3】Why have you not _________ (name) any of your sons after yourself? 【4】We must safeguard our
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is, what, word, a, special, it _______________________________________ !
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buying, Mr. Smith, a, considers, car _______________________________________ .
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paper, I, with, this, fill, box, can _______________________________________ ?
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is made up of, housework, work, house, and _______________________________________ .
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Miss Lucas lived in South Carolina and liked trying new things. Her father 【 1 】 (send) her some seeds of the indigo plants ( 靛蓝植物 ). She planted some of them i 【 2 】 February, but the indigo plants all died because of t
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Gardening is popular in many parts of the world. It brings us sweet smelling flowers, fresh fruit and vegetables. But you can get more from your garden. Gardening helps to keep healthy. Today's people sit indoors for too
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My family moved into this house nine years ago and we called the area in front of our house “rock garden” as it was full of rocks. Last summer, I found a tiny little plant in the _____ but I didn't know its name. I _____
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