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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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七年级·英语·选择题过去将来时的被动语态
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八年级·英语·填空题过去将来时的被动语态
Megan has got used to using c ______ in China.
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八年级·英语·填空题社会文化类阅读
be watch chance begin wonderful it enjoy favorite game do In almost every big city in the United States,football is a popular sport. American football is not like soccer.Players sometimes kick（踢） the ball,but they also t
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七年级·英语·选择题社会文化类阅读
Kingfishers are good at ____________ fish.They ____________ in the holes in riverbanks.（ ）
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九年级·英语·填空题社会文化类阅读
My twin brother,Jack,and I grew up going to American schools.Well,half a year ago,I was standing in my new home in Zhengzhou. Teachers here are working so hard to teach us.Also,they try their best to help us and give us
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九年级·英语·填空题科普知识类阅读
Love,joy,and the warm feeling of pulling together to get through tough times don\’t cost a thing.But gifts do cost money.So,what\’s a poor family to do? When Christmas season rolled around,I told my mother that the only
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七年级·英语·填空题科普知识类阅读
We can see ______ "c" and ______ "r" in ______ word "color" . （用a / an / the填空）
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九年级·英语·选择题科普知识类阅读
Most people consider that being a parent is the most difficult jobs in the world.（ ）
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九年级·英语·选择题科普知识类阅读
—How do you study for a test? —I study for a test by cards and reviewing them after class.（ ）
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七年级·英语·填空题科普知识类阅读
Hearing the sound of birds,I can feel the beauty of n ______（大自然）.
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九年级·英语·选择题政治经济类阅读
—The government work report____________the achievements in national education. —I\’m really proud of the great changes in our country.（ ）
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九年级·英语·填空题政治经济类阅读
Canton Tower （广州塔）is the highest tower in China.（1）______you stand on the top of the tower,you can get a bird\’s eye view of the Pear!River.Visitors are（2）______in taking photos of the city at the tower. In 2005,workers（
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九年级·英语·填空题政治经济类阅读
①Have you ever paid for educational podcasts（播客） or live videos?Ask some people and most of them will say yes. "Pay-for-knowledge"has been fashionable these years.Everything you think of can be found online,skills of tal
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九年级·英语·填空题文学作品类阅读
Characters：Evan，Mrs．Bordoni，Mr．Contei，Rita．Marco．Tom Setting：An elementary school Mrs．Bordoni：（Stands at the school gate） Good morning!You need to go straight to your classrooms，children．（A shy boy walks up，looking nervo
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八年级·英语·填空题政治经济类阅读
At 6:00 am on any day （1）______December,it is still dark in the village of Yuanbao in Guizhou Province.But Wu Yujie is already playing soccer with （2）______（she） teammates on the playground.The girls train for about four
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九年级·英语·选择题政治经济类阅读
Scarlet never the money and she only thinks of the others.（ ）
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八年级·英语·填空题政治经济类阅读
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九年级·英语·填空题历史文化类阅读
opposite fun through if work one crowd upstairs what it example In most museums,there are many rules for us to follow.For（1）______,we are often told, "Don\’t cross that rope!Don\’t touch that!"However,the Please Touch Mu
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九年级·英语·填空题历史文化类阅读
2021 is called the Year of the Ox by Chinese.But why is it?The oxen have been （1）______ （faith） friends of mankind.They are considered as "boats on land" for （2）______ （they）ability to carry goods.Besides,the whole body
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七年级·英语·填空题历史文化类阅读
My name is Bob.I am from the UK.I live in China with my family.I was born on June 30th,2012.My hair is yellow.My eyes are blue,like the colour of the sea.I like going out.The green trees,the blue sky...They are nice.I lo
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