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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
Here the results the student activity survey.( )
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Do you know Ya Ya?Ya Ya is one of the most famous pandas in the world.This year,she comes back to China from America with the help of many kind people.All Chinese people are excited(激动的) about it. Ya Ya is white and blac
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What is your favorite cartoon?Here are four famous cartoons.Let\’s have a look. Ma Liang is a poor boy and he really loves painting.He always uses his magic brush to fight against the bad people in the village.The cartoo
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An apology(道歉) means one person has realized that an action was wrong and hurtful.No matter what we are apologizing for, (A) if we hurt someone,then saying sorry is the first step .Learning how to apologize is an importa
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A farmer had some puppies(小狗) for sale,from 30 to 50.While he(1)______ (paint) an ad for the puppies,a little boy passed by and said, "Sir,they are so lovely.I want to buy one of your(2)______(dog)." "Well,"said the farm
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-Let\’s go to the community if it tomorrow. -But nobody knows if it tomorrow.( )
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We play s ______every day.
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our duty;to clean the classroom;it\’s;to take turns(连词成句) ______.
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—How many students are there in your class? —Forty.It is 18 girls and 22 boys.( )
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It\’s eight o\’clock in the evening and Mr White_______TV at home.( )
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The girl with two cats in the yard when the earthquake happened.( )
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Congratulations,Jonathan! When Jonathan,the giant tortoise (巨型陆龟) was born,Queen Victoria was just a teenager.The ruler of the United Kingdom died more than 120 years ago at the age of 81,while Jonathan is still moving a
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A:Mike,come and look at this painting of Shrimp (虾)! B:Yeah,it is amazing! (1)______? A:Yes,it is.How do you know that? B:Well,Qi Baishi is famous all over the world.Besides,I am quite interested in Chinese painting. A:H
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Top Four Unusual Shops Senbikiya If you are looking for something perfect, come to Senbikiya in Tokyo, Japan ! You buy fruit - perfect and very expensive fruit. There are apples for 25 each and 12 straw berries for 82. Y
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Xiangjiang High School Library Rules The most important rule in the library is RESPECT. Respect the books Respect the teachers Respect each other Please keep voices low No smoking No eating or drinking in the library, ex
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(2022九上·浦东开学考) By the end of last month, a large number of books ____into English.
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So far,many people's lives_______with the help of the doctors and nurses.( )
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— May I go out with my friends, Mom? — Unless your homework ______.
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从方框中选出恰当的单词或短语并用其恰当形式填空,使短文意思通顺完整。 symbol, stand for, because, together, important, come, popular, second, celebrate, pass August the 15th according to the lunar calendar is the traditional Mid-Autumn Festival in China.
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Rewrite the sentences as required. 【1】Jenny said to me, " Don't catch the fish in the pond“(改成间接引语) Jenny _______________catch the fish in the pond 【2】The kind boss has fed all the cattle on the farm.(改成被动语态) All the cat
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