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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·阅读理解专题报道
Boys and girls,have a look and see if you are interested in the amazing events. Yangzhou Horticultural Expo What do gardens around the world loo like？Now you have the chance to find out at the 2021 International Horticul
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九年级·英语·阅读理解个人故事
Yang Zhen was an honest and clean （廉洁的） government officer during the Eastern Han Dynasty （25-220）. One day,Yang met his old workmate Wang Mi on a trip.They had fun talking about their life experiences and good wishes to
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九年级·英语·填空题记叙文
A 6-year-old girl had been shopping with her mom in the supermarket.It was raining hard at the moment.We all stood （1） ______ the door of the supermarket and waited quietly.The girl's sweet（2） ______ broke the silence, "
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九年级·英语·补全对话英文要点
从方框内所给的选项中选择恰当的句子完成此对话。 A：Look!Those young children are playing ping-pong so well. B：Yes,ping-pong is popular with people of all ages in our country. A：（1） ______ B：No.It's said that it was first played in England in the
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九年级·英语·选择题问答/审问
---Julia,I'm sorry for what I have done. ---______ .I know that people get mad easily when they're under pressure.（ ）
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九年级·英语·选择题宾语从句
---Uncle Li,I wonder ______ in Beijing. ---The red autumn leaves of the Fragrant Hills （香山）are the most beautiful.（ ）
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九年级·英语·选择题现在进行时
---The classroom is so quiet. ---Yes,all the students______ for the final exam.（ ）
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九年级·英语·选择题固定短语
Junior high school days are over and it's hard to ______ our dear teachers and friends.（ ）
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九年级·英语·选择题固定短语
Frank won the first prize in the school chess competition,and we're all ______ him.（ ）
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九年级·英语·选择题固定短语
---This is so difficult that I want to give up. ---Take it easy .______ ，it takes time to learn something new.（ ）
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九年级·英语·选择题一般现在时的被动语态
The videos about cooking tell us how food_______ .（ ）
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九年级·英语·选择题副词辨析
Learn ________ ，and you will be a successful learner.（ ）
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九年级·英语·选择题情态动词
Don't you know passengers ________ smoke on high-speed trains？（ ）
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九年级·英语·选择题动词辨析
Our national hero Yue Fei _______ to devote （贡献） himself to the country at a young age.（ ）
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九年级·英语·选择题从属连词辨析
Your dad has just fallen asleep.Don't wake him up ______ it's really necessary.（ ）
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九年级·英语·选择题介词辨析
Cathy always makes good use of her time to study,even _______ her lunch break.（ ）
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九年级·英语·选择题形容词词义辨析
Our teacher often warns us it's ______ to leave much personal information on the Internet.（ ）
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九年级·英语·选择题物主代词
---Your spoken English is perfect! ---Thank you.I think _______ is better.You read English every morning.（ ）
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九年级·英语·选择题名词辨析
_______ can make people happy and want to make greater progress.（ ）
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九年级·英语·填空题those的用法及答语,可数名词的单复数,形容词作定语,个人故事,其他介词,日常生活
those, hand, al, l, with, knife Grace is a little girl. Last night, she had a strange dream. She dreamed that she was having dinner (1) an alien in her dining room. She had to tell the alien what (2) the things on the ta
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