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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
1.自进入初中以来,回首以往的时光,你有什么变化?请你以"How I have changed!"为题写一篇英语作文,请从以下信息中任意选出2-3个方面描述你的变化: (1)appearance 2.personality 3.schoolwork 4.relationship 5.hobbies and interests 要求: (2)参考提示内容,可适当发挥; (3)语句通顺,意思连贯,书写工整; (4)文中不得出现你的任何真实信
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假设你叫李华,你的英国笔友Linda为了来中国旅游而报名参加了汉语培训班学习汉语.她最近写信向你询问学习外语的建议.请根据下列提示和你学习英语的体会给Linda写封回信. 注意: 1.回信需要包括全部要点; 2.开头和结尾已经给出,不计入总词数; 3.词数60左右. Dear Linda, I\’m very glad that you\’ll come to China to take a vacation.I know it isn
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---Soldier, I don't care _____. In this army, there's only one hairstyle—short! Understand? ---Yes, sir!
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I’m new here, could you please tell me ________?
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①In 2024,Donald Trump was elected President of the United States once more.His election campaign(竞选活动) was filled with excitement as he traveled across the country,making passionate speeches.A large number of supporters
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根据短文内容,用方框中所给词语的适当形式填空,使文章通顺、完整. (每词限用一次) visit,little,allow,make,where,cause,can,city,safe,popular During the week-long National Day holidays,the mysterious Ailao Mountains in Yunnan Province,southwest China,became very
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—The Robotaxi (萝卜快跑) shows the development of AI. —Yes,it is such a hit in Wuhan now.( )
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—What did the manager ask you after the meeting? —He asked me ________.( )
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She used to have curly hair. ( 改为否定句) She ____________to have curly hair.
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A.She enjoys eating candies a lot. B.Yes,I guess so. C.It might be Laura\’s. D.Is this red coat yours? E.She likes red very much. F.How do you know that? A:Excuse me,Sandy. (1)______ B:No,it isn\’t.I don\’t have a red co
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_______ Growing up in a far-away town in Gansu province,12-year-old schoolgirl Liao Wenting was surprised to find that the high-tech products that she had seen in sci-fi(科幻) films could be within arms\’ reach. Her school
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— have you been in Qingyang? —For three years.( )
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— Mum,can I play basketball now? — If your homework ,you can.( )
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-Our classroom ____ every day. -So it is.It's our duty to keep it clean.( )
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Mr.Zhang got up very early ______he could catch the early bus.( )
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-Do you know if Simon ___the writing competition next week? -He will if his project about nature ___.( )
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Mary used to play tennis,didn't she? ( 作否定回答) ______
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Tom used to be a worker, ____________? (完成反意疑问句)
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Hunan,a province in Central China,is the birthplace of China\’s greatest thinkers,scientists and leaders. Wei Yuan ( 1794-1857 ) was born in Shaoyang,Hunan.He was the first Chinese thinker in modern times to open his min
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--I can\’t believe we are in the countryside of Hefei. --It greatly over the past few years under the right leadership of the government.( )
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