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#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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吴斌斌比他的弟弟强壮. Wu Binbin is ______than his brother.
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I\’m Kangkang and I study at a middle school in Beijing.Our school life is fun and colorful.On the morning of every Monday,we raise the national flag.We start the first class at 8:00 a.m.every day.We study Chinese,Englis
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I have two friends,Teng Fei and Fu Xing.Teng Fei (1)______( be ) from Shanghai.He is 13 (2)______ ( year ) old .He (3)______ ( have ) short hair.(4)______ ( he ) favourite sport is basketball,and he plays basketball very
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对大多数中国人来说,在春节吃饺子是一种传统. For most Chinese,it is a tradition to have dumplings ______ .
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—How can I get to the library? —Go straight.Then ( )
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Living in a foreign culture can be exciting,but it can also be confusing(令人迷惑的).A group of Americans who taught English in other countries recently discussed their experiences.They thought that miscommunications(错误传达) we
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What does Molly want Nick to do?( ) MESSAGE To:Nick From:Molly Nick,are you free this Sunday evening?I want to go to the movies.Can you go with me?
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He hangs some beautiful lanterns under the roof to attract visitors.(改为被动语态) Some beautiful lanterns ____________under the roof by him to attract visitors.
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- He is _____ late for school, is he? - No, he isn\’t. In fact, he comes to school earliest in his class every day.( )
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Sports are good for your (1)______ (healthy ).Playing sports is (2)______(relax) and fun.(3)______ some people go too far.They spend most of their time(4)______(do) sports or (5)______(watch ) sports on TV.Their bedrooms
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Feelings are part of our lives.We feel happy,sad,angry and scared.It is important to know how to manage them.When we are happy,we can share our joy with others.If we are sad,we can talk to a friend.When we are angry,we s
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Remember,neither your animal sign nor your star sign ______(shape)your life and future.
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White was driving home when he noticed the grey pickup truck (皮卡车) among the busy traffic.During the rush hour,the pickup was coming towards White in a(1)______way.As it drew(2)______,White discovered the problem:The dri
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Hello,I\’m Kate.I like different kinds of food.I like hamburgers,ice cream,salad and orange juice.For breakfast,I often have some milk and hamburgers.I don\’t like dessert(甜点).My favourite soccer star Tony Brown eats lot
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be,future ______
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"www" "com" "org"" net? -many years ago these letters didn\’t mean(1)______ (something) to anyone. (2)______ today almost everyone can tell you that "www" means World Wide Web.And "com" "org" and "net" are all parts of w
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Jiang Ping,______18-year-old student became the first vocational(职业的) school student to reach the finals of the 2024 Alibaba Global Mathematics Competition.( )
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Su Shi isn\’t a strange name to us,as we learn his ci in textbooks.Su is one of the most popular ancient writers.He was good at almost all kinds of writings and art,including poems,ci and prose(散文) as well as calligraphy
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A:Is that Jack? B:(1)______.Jack is a little shorter than John. A:Are they twins? B:(2)______.They look almost the same.And they are my best friends.We have the same hobbies(爱好). A:Then(3)______? B:We all enjoy playing t
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