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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|}=
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The whole school was talking about the winter camp.And everyone was looking forward(1)______it except me because I thought I would get homesick.But it was the way we grew up. When we(2)______(arrive) at the camp,we were
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It\’s always busy, so come earlier to get a table.( )
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Do you remember the story The Magic Brush of Ma Liang?Here is a similar story.The movie Harold and the Purple Crayon hit theaters in August,2024 in the US.It was adapted from(改编自)a famous children\’s book by Crockett Joh
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It was really ______ /ɪn\’dʒɔɪ/ to climb high mountains with my friends.
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George and Betty didn\’t have much money,but they wanted to buy a car.Betty didn\’t have a(1)______,so she was always finding ways to save money.She planted some(2)______in her garden so she wouldn\’t have to buy them.Sh
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If you have__________pity on these people,you should take action to show some support.( )
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Today is December 15,2031.Influenced by the launch of the first manned mission to Mars next month,you will most likely get a gift card for a space trip. The interest in space trips has grown steadily among people since s
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The Guangzhou government continues to carry out the selection activities of"Guangzhou Good People",The purpose of the activity is to encourage people to take part in making a better society.Song Jinjin was honored to win
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—Zhao Liying ______ (present) with the Best Actress Award at 2024 Feitian Awards. —Yes,she said she never thought such a great thing could happen to her.
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A pop-up installation (弹出式装置) that looked like a bookstore was open in Shanghai.It drew much attention because of its unusual offering.The 9-square-metre place could hold only six people at a time.The 3,000 old books on
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—Do you know anything about Zhang Guimei? —Yes,she often chats with the students and helps______with their problems.( )
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The customers are complaining about the poor ______(serve) by the restaurant.
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Animals on a Farm What animals do farms have?Farms have lots of animals,like hens,pigs,sheep,cows, (1)______ (山羊),horses and so on,but no(2)______(豹子).They ar too wild. (3)______do farm animals live?Look at the map of a
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Baseball is one of the favourite sports in the USA.Children play baseball in sports field or in parks. At summer picnics,there is often an informal baseball game.Boys and girls,the young and the old take turns to beat.Ea
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Recently,there was a special activity for international students in Shanghai.It was called the 2024 "Urban Classroom".It wanted to show international students the real Shanghai.It also offered a chance for them to deeply
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At home,students should ______ (educate) to look after themselves from a young age.
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The story of the Jade Rabbit(玉兔) Once upon a time,there were three animals living in a forest—a fox,a rabbit,and a monkey. One day,a god wanted to test the animals\’ virtues(美德).So he came to Earth and changed himself in
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Missing "LOST DOG" Reward:¥ 500 Name:Coco Age:6 years old Description(描述): Coco is a big brown dog.It is very friendly. If you find it,please call Mary at 850-6977. You can also e-mail her at Mary@ mail.com I really want
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Huangguoshu Waterfall is one of the most famous waterfalls in the world.It is in Anshun,Guizhou Province(省).The waterfall is 77.8 meters high and 101 meters wide. It is the biggest waterfall not only in China but also in
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David is a boy from UK,but he\’s in China now.( )
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