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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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九年级·英语·选择题Unit 5 Action
- Why do many Chinese people like the number 8？ -Because they think 8 is a ____________ number. （ ）
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八年级·英语·填空题Unit 2 Work and play
Have you heard about "Survival（生存） Holidays"？ "Survival Holidays" is for children to go into the lonely place for exciting activities. Now about 1，100 companies are (1) to take children into the great outdoors without th
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八年级·英语·阅读理解Unit 2 Work and play
Have you ever considered all the English expressions that include words about clothes？Let's have a look. People wear pants to cover the lower part of their bodies.We sometimes say that people who are nervous have ants in
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八年级·英语·句型转换Unit 2 Work and play
Wendy never fails an exam. （改为反意疑问句） Wendy never fails an exam,____________？
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八年级·英语·句型转换Unit 2 Work and play
The math problem is too difficult for her to work out. （改为同义句） The math problem is______ difficult______ she can't work it out,
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八年级·英语·句型转换Unit 2 Work and play
I spent over half an hour writing my blog yesterday morning.（保持原句意思基本不变） It____________over half an hour to write my blog last morning.
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八年级·英语·句型转换Unit 2 Work and play
Our school life is very enjoyable.（改为感叹句） ____________our school life is!
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八年级·英语·句型转换Unit 2 Work and play
The Grade Nine students will graduate from middle school in two weeks .（对划线部分提问） ____________will the Grade Nine students graduate from middle school？
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八年级·英语·句型转换Unit 2 Work and play
He always goes to play basketball with his friends. （改为否定句） He______ always______ to play basketball with his friends.
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七年级·英语·单词拼写/单词释义Unit 4 Jobs people do
Peter-I study at an i (1) language school during my study in Australia． My classmates come from d (2) countries． Brazil， France， South Korean， J (3) and even India． You know what ？ There is a 60-year-old lady in my readi
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七年级·英语·填空题Unit 4 Jobs people do
There are many books for young readers． Some of these are for youths 12 to 18． Others are for children under 12． There are even some books for babies． And they can't even (1) ! People who write for youths write all kinds
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七年级·英语·阅读理解Unit 4 Jobs people do
Wild animals Many of us think that all animals are dangerous． In fact， very few of them will eat a man if he leaves them alone． If you meet a tiger， I'm sure you will run away， but even a tiger doesn't like meeting a man
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七年级·英语·单词造句Unit 4 Jobs people do
saw， street， I， cleaners， the， cleaning， some， streets （连词成句） ______．
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七年级·英语·句型转换Unit 4 Jobs people do
My father is an architect． （保持句子意思） My father's job is to____________of buidings．
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七年级·英语·句型转换Unit 4 Jobs people do
Last week she looked after her grandmother． （保持句子意思） Last week she____________of her grandmother．
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七年级·英语·句型转换Unit 4 Jobs people do
The girl watches TV in the evening． （改为否定句） The girl____________TV in the evening．
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七年级·英语·句型转换Unit 4 Jobs people do
He bought a new bike yesterday． （改为一般疑问句） ______ he______ a new bike yesterday？
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九年级上·英语·阅读理解Unit 4 Problems and advice
阅读理解 In the summer between my first year and second year in college, I was invited to be an instructor(辅导员)at a high school camp. On the first day, when we were dancing and playing games, I noticed a boy under the tree w
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九年级上·英语·阅读理解Unit 4 Problems and advice
阅读下列短文，从下面每小题的A.B.C .D四个选项中选出最佳选项。 As parents, you can help children deal with the fear of natural disasters (自然灾害) and help protect them from being hurt by telling them how disasters happen, and what to do when disaster
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九年级上·英语·阅读理解Unit 4 Problems and advice
根据短文内容，选择正确答案。 Clothes are important and necessary to us, but do you know how to choose suitable clothes in a correct way? Here are some ideas for you.When you go shopping and want to buy some clothes, you should think a
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