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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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Read the passage and fill in the blanks with proper words (在短文的空格内填入适当的词,使其内容通顺,每空格限填一词,首字母已给) Have you heard of the term"etiquette"?And do you know that etiquette is not only a useful word but also very useful to unders
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Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词使其内容通顺,每空格限填一词,首字母已给) I can't wait for spring to come! I'm tired of winter.I'm tired of the snow.I'm tired of cold weather,and I'm sick and tired of
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Read the following passage and fill in the blanks with proper words (在下列短文内填入恰当的词,使其内容通顺,每空格限填一词,首字母已给) It is good to keep animals in zoos.Zoos are places for people to see many different kinds of animals from all over t
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Read the passage and fill in the blanks with the proper words:(在空格内填入合适的词,使其内容通顺,每空格限填一词,首字母已给):7% What do three hearts,eight arms,and one huge brain add up to?An octopus (章鱼)-a sea (72)a that can do amazing(令人惊奇的) thing
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My best buddy I met you seven years ago at a stranger's house. When I looked at you, I knew we would be friends forever. Quickly,I ran across the room and gathered you in my arms. I petted your long,floppy ears. I tickle
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Don't wait for others to be polite. Show them __________ a friendly person you are.
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— Excuse me, could you please tell me __________ ? I forgot about it. — Only in five minutes. You’d better hurry up if you don’t want to miss the beginning.
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朋友想知道你在暑假是否玩得开心,你可以这样回答: ______.
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Time Square Shopping Coupons(优惠券) Hours of Free Parking You will receive 2 hours of free parking if you spend $30 in our store.But if you spend $50 or more,you can get 8 hours of free parking and coupons.And you can get
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Special Exhibition(展览) Red Star Enlightens(照耀)Shijiazhuang :Shining for a Century Date September 25,2024~October 7,2024 Place Special Exhibition Hall (1 F) There are 272 pieces,4 parts in the exhibition. The first part s
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Sharing Mind Maps with Classmates There are different kinds of mind maps.You can choose from them to complete the tasks clearly. (1)______Tom needs to make a report on how to make delicious banana milk shake.He wants to
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Welcome to the Painting Competition for Woodlands Students. The International Anti-Drug Day(禁毒日) this year is coming soon.In order to raise teenagers awareness(意识)to fight against drug taking.,The City Art Council is goi
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Maybe you won\’t think you can be the best student.However,anyone can become a better student if he or she wants to.Here\’s some advice. Plan your time carefully.When you plan your week,you should make a list of things t
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easy invent plenty of tool including Pinyin is a modern (1)______.It was invented in 1958 to help illiterate(不识字的) Chinese to learn how to read.It worked out quite well.(2)______ people learned to read quickly with the h
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When you go out for a business trip or a weekend,you (1)______ have to pack your mobile phone,laptop(手提电脑),MP3 player,camera and so on.It\’s wonderful for you to (2)______ no batteries,no chargers(充电器) and no wires. This
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①Do you remember the name of your kindergarten teacher?I do,Her name was Mrs.White. ②I don\’t remember much about what we learned in her class,but my mother once told me that we used to write a lot.And I would bring back
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Colourful and rich Chinese culture and fast economic (经济) development make China well-known to people in many(1)______(country) around the world.China is the(2)______(three) largest country in the world in area.China is
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Lynn was a young doctor.She had a strange experience in June when she was spending Saturday night at her parents\’ house.Whenever she stayed with them,she slept on the long sofa in the sitting room.The sofa was set again
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Red is the color of China.Among all the (1)______,red is most easily seen.The color red is fresh and pure,and in China we call it China Red.Chinese people are attracted by the color red not only because it makes people e
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28.In which order did the story happen? A.a-b-c-d B.d-b-a-c C.c-d-b-a D.d-b-c-a 29.What does“She has a very good eye”mean? A.She doesn’t need glasses. B.She can only see with one eye. C.She needs people to help her see t
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