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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·选择题固定句式
-I hear there’s a good French restaurant nearby．Why not ________ there for lunch？ -Yeah，let’s go．（ ）
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九年级·英语·填空题固定句式
It （对我们是有帮助的）to choose public transport to change traffic jams．
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九年级·英语·选择题固定句式
The blind man walked across the street ________ the help of a boy．（ ）
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九年级·英语·选择题固定句式
________children there are in a family．___there life will be．（ ）
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九年级·英语·选择题固定句式
Our teacher often makes us________________English words．（ ）
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九年级·英语·选择题固定句式
-Jenny，do you think _____ money you have，_______ you’ll be． -No，I am afraid not．Happiness doesn’t always go with money．（ ）
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八年级·英语·选择题主从复合句
_____ of the two books are very interesting, so I can't decide which one to choose.
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八年级·英语·选择题主从复合句
The bus driver always says to us: “Don’t get off ______ the bus stops.”
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九年级·英语·选择题并列复合句
Don't stay up too late. you will probably be late for school tomorrow. A.and B.so C.but D.or
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九年级·英语·选择题主从复合句
I felt it is right ______ you should know.
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七年级·英语·选择题并列复合句
________ Jim practices speaking English every day, ________ he speaks English very well. A.So, / B.Because, / C.Because, so
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九年级·英语·选择题并列复合句
The train was late, we had to wait for half an hour. A. because B. or C. so
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九年级·英语·选择题主从复合句
More and more couples would rather a second baby their first child can feel less lonely. A. have ； in order t o B. to have ； in order to C. have ； so that D. to have ； so that
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九年级·英语·选择题主从复合句
________Tom_______Mary speaks good Chinese, so they can communicate with these Chinese students very well. A、Neither; nor B、Not only; but also C、Both; and
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七年级·英语·选择题并列复合句
—Do you like playing______ basketball？ —No，it's boring． ______my brother likes it． A.the； But B./； And C./； But
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八年级·英语·选择题并列连词
Don\’t meet an "online friend" by yourself,or ________ may happen.（ ）
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九年级·英语·选择题疑问词组
— is it from our home to the museum,Dad? —It\’s about two kilometers.（ ）
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八年级·英语·选择题并列连词
I was very tired last night, ______ I went to bed earlier.（ ）
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九年级·英语·选择题主从复合句
----Jane is lucky to have got the well-paid job. ----Yes, ________she is young and has little experience. A .as B. unless C. though D. since
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九年级·英语·选择题主从复合句
Football is a popular sport. my father my mother is interested in watching football matches. A. Not only; but also B. Neither; nor C. Both; and D. Either; or
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