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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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Once upon a time,there lived a colourful caterpillar(毛虫) named Sunny. Sunny loved climbing trees with her caterpillar friends May and June,but what she loved most was to tell stories.Her stories were so interesting that
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—Excuse me,could you tell me where I can buy some stamps? —________?I didn\’t catch you because it was too noisy.( )
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it,how long,take,did,to,finish,the,card ______?
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can,help,Who,me (?) ______
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I wonder ______ China sent the last Beidou Satellite.I will find out the time on the internet.( )
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—Can you help me with my English? — ( )
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Nadya Alborz is an 11-year-old girl and she loves baking(烘焙)."On a free day,I always bake what I want,"says Nadya."It\’s fun and I can be (1)______." When she was (2)______,she didn\’t like cartoons.But she loved to watc
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-More and more people give out "red packets" on WeChat to celebrate festivals. -That\’s true.I have just received_______ from my friend.( )
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Join the discussion...... There\’s nothing like the excitement of starting a new school,with fresh pens and notebooks.But a new school year also means sitting at a desk for hours each day.Some people feel that the school
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— Mr. Zhang, could you tell me ______________ the Summer Palace? — Next Saturday.( )
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— Could you please tell me ____________? — Yes.There is one on Center Street,not far from here.( )
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Many students ask for (1)______ (advise) about how (2)______ (improve) their English.Here are two basic questions. The first question is about understanding English films and songs.Li Hao from Hubei wrote, "I like (3)___
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take busy with up be on they cook after together Some families(1)______ big.Grandparents,parents and children live (2)______.Most families are small.The parents live with (3)______ children. I\’m Kangkang.I live(4)______
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(1)What kind of housework do the students do most? ______ A.Doing the dishes. B.Making dinner. C.Wash the clothes. D.Cleaning the room. (2)According to the table,how many students take part in the survey? ______ A.25. B.
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