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#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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七年级·英语·单词拼写Unit 8 Countries around the world
As a m ________ of the club, I want to do something for it.
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七年级·英语·单词拼写Unit 8 Countries around the world
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七年级·英语·单词拼写Unit 8 Countries around the world
Li Bai was a famous poet in the Tang dynasty, he wrote many p ________ during his life.
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七年级·英语·单词拼写Unit 8 Countries around the world
What a ________ (love) girl Lucy is! Everyone likes her very much.
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He has a strong sense of ________ (direct). He never gets lost.
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七年级·英语·单词拼写/单词释义Unit 8 Collecting Things
我喜欢在空闲时间看电影。 I like seeing films________________________.
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七年级·英语·单词拼写/单词释义Unit 8 Collecting Things
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我讨厌玩电脑游戏，我觉得那是浪费时间。 I hate playing computer games. I think it's________________________.
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七年级·英语·单词拼写/单词释义Unit 8 Collecting Things
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七年级·英语·填空题Unit 8 Collecting Things
______ （they） teacher is friendly ，______（we）is also friendly
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I think these coins are______ （them）
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根据短文内容，选择正确答案。E Energy is becoming less and less. It is a problem in the world. Many people are worried about that there will be not enough energy for people to use if they use them in a wrong way. Most people agree that
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七年级上·英语·阅读理解Unit 7 School Clubs
根据表格内容，选择正确答案。C Players WantedAre you good at playing basketball? Can you play ping—pong or soccer? Can you swim very well? if so, You are welcome to join our school sports team. Please call Victor at 8863543 or send an
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七年级上·英语·阅读理解Unit 7 School Clubs
根据短文内容，选择正确答案。 “Which meal do we all need most, breakfast, lunch or dinner?” Miss Baker asks. Boys and girls wave their hands in the air. They know the answer. “What do you think, Jim?” Miss Baker asks. “Dinner,” Jim ans
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七年级上·英语·阅读理解Unit 7 School Clubs
阅读下面短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。 What is a museum? A museum is a good place to keep old and beautiful things. A museum may be a place to learn about science and a place to find out about art or people or animals. What i
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七年级上·英语·阅读理解Unit 7 School Clubs
阅读下面短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。 One afternoon, on my way home, I saw a car accident (事故)! I asked people for help, but no one stopped. When the car driver and his wife saw this, they quickly closed the window of the ca
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七年级上·英语·阅读理解Unit 7 School Clubs
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