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高频错题
#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 have some books in my schoolbag. (就划线部分进行提问) ____________ you have in your schoolbag?
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The elephants are in great ______.We must save them.( )
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I like singing and dancing.Mike likes singing and dancing,too. (合并为一句) ______Mike ______ I like singing and dancing.
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—Does Mike know our party next week? —No,he doesn\’t.We can____________him at Mike999@qq.com .( )
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Don\’t lose your temper(脾气)so easily.Keep when something unhappy happens.( )
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Will you please give me two________?I have something to write down.( )
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Our English teacher always gives us some advice on how to ______ our English.(改进)
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I\’m wondering how you managed ______(escape) the dangerous situation.
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(2013广西玉林)—Please give Alice the storybook ________ you see her. —All right.
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With his left hand,he bandaged himself so that he would not lose too much blood. (句子成分) ______
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November 11 is coming. My sister, ______ other girls, ______shopping on Taobao.
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(2022七上·洪山开学考) "A room without ____ is like a room without ____. " is my favourite saying.
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Verb(动词):/rʌn/ ______/ krɔ:s/ ______
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Lucy\’s favorite n ______ is 8.I think it can bring me good luck.
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Tony works ______(hard)at Chinese these days.
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Tim\’s sister can sing and dance ______ (好).
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It is cold outside.Put ________ your coat.( )
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Our English teacher ______(总是)gives us some advice on how to learn English well.
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It\’s windy outside.Put on your coat,______ you may catch a cold.( )
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you,get,there,are,going,to(?) ______
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