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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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九年级·英语·单词拼写/单词释义语篇范围

A． shared B． figures C． extend D． efforts E． reduce Chen has also combined the ancient Chinese characters with cartoon (1) ． A cartoon video clip featuring oracle bone inscriptions designed by him was viewed 31 million t

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九年级·英语·单词拼写/单词释义语篇范围

A． character B． ancient C． closer D． total E． totally Chinese oracle bone inscriptions （甲骨文） over 3，000 years old are now being widely used as emojis by young WeChat users, thanks to a person who made them (1) to people'

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九年级·英语·单词拼写/单词释义语篇范围

According to an old story, a young man came across a spring of delicious crystal-clear water while wandering in the desert. The water was very sweet. He filled his leather b (1) so he could bring some back to an old man

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九年级·英语·填空题记叙文

For several months I have been living in Ubud, Bali （巴厘岛）， and I really love it. One of the many things I enjoy here is that I can travel without going anywhere, because friends regularly fly in to visit. When I am the o

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九年级·英语·阅读理解个人故事

We spent a day in the country, picking wild flowers. With the car full of flowers we were going home. On our way back my wife noticed a cupboard outside a furniture shop. It was tall and narrow. "Buy it," my wife said at

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九年级·英语·句型转换固定搭配

reads, stories, Sunday night, Johnson, a lot of, detective, on （连词成句） ______．

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九年级·英语·句型转换语法知识

I have learned more than 2，000 English words so far. （对划线部分提问） ____________English words have you learned so far？

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九年级·英语·句型转换语法知识

Be careful when you are walking across the street. （改为同义句） Be careful____________across the street.

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九年级·英语·句型转换语法知识

From her letter I knew Jane didn't live in Canada any longer. （保持句意不变） From her letter I knew Jane____________ live in Canada.

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九年级·英语·句型转换语法知识

Some reporters interviewed a government official on traffic problems yesterday. （改为被动语态） A government official____________on traffic problems by some reporters yesterday.

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I reall y don't know ______ this question.

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I found ________ with my new camera when I was in the park yesterday afternoon.

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九年级·英语·选择题初中英语知识点》句子种类》特殊句式》固定搭配###牛津上海版（2008）》九年级第一学期》Module 3 Fighting crime》Unit 6 Detectives###北师大版（同北京课改版）（2013）》八年级下册》Unit 6 Detectives###

Mr Zhang is an old man who enjoys ________ stamps from all over the world.

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Please finish off ________ of the bread on the plate. Don't waste it.

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