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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
Boys and girls,what kind of books do you like reading?A classic (1) (小说)in the USA stands out by talking about real life problems.To Kill a Mockingbird(《杀死一只知更鸟》)is a Pulitzer Prize winning book written by Harper Lee. Th
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J.K.Rowling is the writer of Harry Potter,which is now one of the bestsellers in the world.J.K.Rowling was born in Bristol on July 31st,1965.She has one sister who is two years younger than her.Both girls loved listening
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用所给单词的适当形式填空 【1】Jin Yong is a famous ______(write) of the time. 【2】No student in this class is from the______(south) part of China. 【3】Who was the most famous scientist in the ______(nineteen) century? 【4】His grandfather
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You may think that English dictionaries have been used for many,many centuries. In fact,an English dictionary you _____ today wasn't made until the Qing Dynasty(清朝).Three men did most of the important _____ work on dicti
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将下列句子改为被动语态 【1】We call the boy Xiaoxiao. The boy ____ _______Xiaoxiao ______ _______. 【2】We speak only English in English class. Only English _______ ______ by us in English class. 【3】The man doesn't look after the flowe
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从括号中选择适当的单词填空 【1】—I haven't seen your grandfather for several years. Where has he gone? —Oh,he has ______(gone/been)to the US. 【2】The woman is afraid to _______(follow/be followed)by others. 【3】The rice ______(grows/is g
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根据句意及汉语提示完成单词 【1】I think Confucius is more a ____(思想家)than a writer. 【2】Our teacher asked us to write a review for the _____(讨论). 【3】People not only in China but also from many other countries are still ___ (影响)by Confuc
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—Many tourists ______ to the Great Wall every year. —Yes, that's true.
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The following four books are about ______ stories.
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—How clean and tidy your bedroom is! —Thank you. It ______ every day.
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用所给单词的适当形式填空,必要时可以加情态动词。 For any F1 driver , 【 1 】 ( win ) a world prize is a great honor (荣誉). But Sebastian Vettel did it three times! Sebastian 【 2 】 ( born ) in 1987 . He started karting at an early age . He had a ta
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Ⅲ.用所给单词的适当形式填空 【1】It's important for the children____________(make)friends with others. 【2】The 30th Olympic Games ____________(hold) in London in 2012. 【3】We are having a ______(discuss)about our future plan. 【4】______(c
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Mr.Smith's factory is becoming ______.He needs more workers.
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Mr.Smith ______ to represent the computer company because of his contribution.
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—Will you______the game tomorrow? —Of course,I will.
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The important meeting ______ on a cold morning last year.
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—Nice work.It took you______10 minutes to do the maths problem. —Thank you for saying so.
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Ⅰ.句型转换 【 1 】 Is tea planted in South China ?(改为主动语态) ______ people ______ tea in South China? 【 2 】 I am given a birthday present by my parents every year .(同义句转换) A birthday present ______ ______ ______ ______ by my par
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Dear Abby, My name is James Brown.My brother is John Brown.He is eight years (1) (大)than me. When John was in high school,he was very good at the 110m hurdles (2) (比赛).He always got first place in the school sports meeti
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David Beckham , former England captain retired in May . The great midfield player made his first appearance in the match between England and Moldova in 1996 . Since then , he has made 115 appearances for England and 394
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