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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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China plans to build 3,200 km of new highspeed railways in 2019. It is expected that there will be the total length of more than 30,000 km. The 3,200 km of highspeed railways are part of the 6,800 km of new railways fo
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When I was 15, I said to my classmates that I wanted to be a writer one day. All the _____ laughed at me. One of them said, “Don't be silly. Only geniuses ( 天才 ) can become writers.” I was deeply hurt and I couldn't help
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Do you ride your bike to school? It's 【 1 】 (probable) a good idea because it's a good exercise. But in Europe and 【 2 】 US, not many kids go to school on their bicycles. They are usually 【 3 】 (take) to school in cars b
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(2020 原创 )My home is not far away from school. So I go to school ________ foot every day.
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(2020 原创 )I don't know the phone n ________ of John. So I can't get in touch with him.
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Anna White is an English girl. Her last name is White. She is 12 years old. This is (1) room.In her room,her books and dictionaries (2) in the bookcase. Her eraser is on the (3) .Her pencil case is on the desk, too. Some
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My friend has a pet dog . 否定句:______ 一般疑问句:______ 肯定回答:______ 否定回答:______ 对画线部分提问:______
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He has dinner at seven thirty . 否定句:______ 一般疑问句:______ 肯定回答:______ 否定回答:______ 对画线部分提问:______
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They have an art class today . 否定句:______ 一般疑问句:______ 肯定回答:______ 否定回答:______ 对画线部分提问:______
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I have two notebooks in my schoolbag. 否定句:______ 一般疑问句:______ 肯定回答:______ 否定回答:______ 对画线部分提问:______
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你今天上什么课? What______do you______today?
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你有手表吗? ______ you have a______?
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他喜欢篮球吗? ______ he______ basketball?
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______ he was tired,he went on working.
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―______fine day it is today! ―Yes,the sunshine is______beautiful that I'd like to go swimming in the sea.
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用方框中所给短语的适当形式填空 so...that... such...that... too...to... as soon as not...until 【1】The meeting room is ______ small ______ hold 300 people. 【2】They will ______ go to bed ______ the football match is over. 【3】Mr.Smith's cl
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下面的内容是你一次经历的要点提示,请你根据提示内容写一篇不少于90词的英语日记.日记的格式已给出,不计入总词数. 要点提示: 1.爸爸出差,下午放学回家后发现妈妈生病了; 2.陪妈妈去医院; 3.从医院回到家后,给妈妈和妹妹做了晚饭. 要求: 要点完整,语法正确,上下文连贯,可适当发挥. 16th August 2017 Wednesday Cloudy _____.
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Hershey chocolate is famous around the world. The man who began it , Milton Hershey, was glad to share the fruits of success with others. Milton Hershey was born on 13th September 1857. In 1871, he started working for a
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At about ten o'clock the telephone______/ræŋ/ again.
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Last summer holidays Jenny stayed in Japan for a______ /ˈkʌpl/ of weeks.
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