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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·填空题阅读排序
Last summer，Mark became a middle school student．He took an English test in the first month．Mark was a good student and he worked hard．He finished the questions easily until he read the last one："Everyone sees our school'
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九年级·英语·填空题判断推理
Can you imagine a world without chocolate?According to chocolate makers,it could happen if we don\’t act soon. There are two main causes of the chocolate shortage —chocolate\’s growing popularity and less production of c
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八年级·英语·填空题历史文化类阅读
Last week,Shiyan Middle School made a survey about students\’ favorite sports.Here are some students\’ answer. Some students\’ favorite sports PE is difficult but I like it very much.I am in our city sports club.The memb
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七年级·英语·填空题历史文化类阅读
The food we made ______ tastes better.（our）
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七年级·英语·填空题历史文化类阅读
with,and,well,teach,class,very,play,what,favourite,it,for,an Hello,everyone!I\’m very happy to share my school life（1）______you.This week I have five English（2）______.I learn some new words.And I also watch（3）______inter
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八年级·英语·填空题状语从句
Today,students can join many after-class a ______.
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八年级·英语·填空题句型转换
Rick runs the fastest in his school. Rick runs ______ any other student in his school.
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八年级·英语·填空题句型转换
Maybe you have heard about"City bu city"（city or not city）.This phrase was created by a foreign blogger Baobaoxiong during his visit to the Great Wall and became popular.It\’s a way to ask if a place has the fashionable
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八年级·英语·选择题句型转换
He was kind and ______ to share his lunch with a hungry stray dog.（ ）
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九年级·英语·选择题主谓一致
--Your jacket feels so nice,what\’s it made ______ ? --Silk,and it is also made _____ hand.（ ）
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九年级·英语·选择题语态的辨析
-Oh，the room is too dirty，Tony! -Sorry，Mom．It yesterday．I forgot to do it．（ ）
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九年级·英语·选择题语态的辨析
Our homework should _______ in time every day．（ ）
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九年级·英语·选择题语态的辨析
-Now old people without children ______ good care of by our government． -How happy they are!（ ）
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九年级·英语·选择题一般现在时的被动语态
Now Chinese couples to have three children to reduce the pressure of an aging population.（ ）
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七年级·英语·填空题不定式
警察艺术家可能对同一个罪犯有不同的描述. The police artists may ______ the same criminal ______.
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七年级·英语·选择题不定式
Would you like ________ a cup of tea with me?（ ）
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七年级·英语·填空题不定式
—How long does the trip ______/\’juːʒuəli/ take? —About 4 hours.
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九年级·英语·填空题历史文化类阅读
The Bermuda Triangle The Bermuda Triangle is a place in the North Atlantic Ocean where lots of ships and planes,such as a group of planes called Flight 19 in 1945 and a big ship called the USS Cyclops in 1918,have gone m
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七年级·英语·选择题祈使句
Please e-mail Mr.Smith ________ mrsmith@163.com.（ ）
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七年级·英语·选择题祈使句
---Let\’s to the park． ---OK!（ ）
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