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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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七年级下·语文·名著导读16*最苦与最乐

凡尔纳被誉为“科幻小说之父”,请你说说《海底两万里》中是如何体现“科幻”这一特点的。

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七年级·英语·阅读理解Unit 4 Let's go shopping

Hello Sandy, We have just returned from our holiday.We went with our friends Edward Smith and his wife Tina to the Yorkshire Moors.That is a beautiful place.It is a natural park.There are lots of places to walk on the to

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七年级·英语·单词造句Unit 4 Let's go shopping

job,to, support,a,in, order,his,he, family,did, part-time(连词成句) ______ .

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七年级·英语·句型转换Unit 4 Let's go shopping

It cost my uncle huge amounts of money to decorate the living room. (改写句子,意思不变). ______ .

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七年级·英语·句型转换Unit 4 Let's go shopping

If you practise more, you will pass the driving test more easily.(改写句子,意思不变) The ______ you practise, the ______ ______ you will pass the driving test.

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七年级·英语·句型转换Unit 4 Let's go shopping

Your grandpa seldom goes to the shopping centre with your grandma. (改反意疑问句) Your grandpa seldom goes to the shopping centre with your grandma, ______ ______ ?

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七年级·英语·句型转换Unit 4 Let's go shopping

These families will move to the new housing estate in two weeks. (对画线部分提问) ______ ______ will these families move to the new housing estate?

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七年级·英语·单词拼写/单词释义Unit 4 Let's go shopping

______ (劳驾)! How can I get to the nearest restaurant from here?

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七年级·英语·单词拼写/单词释义Unit 4 Let's go shopping

There are ______ (两家鞋店) in my neighbourhood .

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九年级·英语·书面表达Unit 4 Amazing Science

根据提示,写一篇80词左右的短文。必须用上提示的单词。 世界迈入智能时代,未来的生活是什么样的?请你想象一下。 单词提示: flight car(飞行汽车),soft screens(柔性视屏), submarine city(海底城市)

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九年级·英语·填空题Unit 4 Amazing Science

Researchers have discovered the first Earthsized planet. It was first marked by 【 1 】 (science) using NASA’s Kepler telescope ( 望远镜 ) , so it’s called Kepler-186f. It lies about 500 light years from the Earth and goes 【

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九年级·语文·诗歌鉴赏山坡羊·潼关怀古

阅读古代诗词,完成文题。 山坡羊•潼关怀古 张养浩 峰峦如聚,波涛如怒,山河表里潼关路。望西都,意踌躇。 伤心秦汉经行处,宫阙万间都做了土。兴,百姓苦:亡,百姓苦。 山坡羊•骊山 ① 怀古 张养浩 骊山四顾,阿房 ② 一炬,当时奢侈今何处?只见草萧疏,水素纤 ③ 。 至今遗恨迷烟树。列国周齐秦汉楚,赢,都变做了土:输,都变做了土。 【注释】①骊山:在今陕西临渔县东南。②阿房:阿房宫,秦宫殿名。③素纤:形容水流回旋迁曲的样子。 对上面两首

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九年级·语文·诗歌鉴赏山坡羊·潼关怀古

阅读下面两首散曲,完成问题。 [甲] 山坡羊•潼关怀古 张养浩(元) 峰峦如聚,波涛如怒,山河表里潼关路。望西都,意踌躇。伤心秦汉经行处,宫阙万间都做了土。兴,百姓苦;亡,百姓苦。 [乙] 山坡羊•骊山怀古 张养浩(元) 骊山四顾,阿房一炬,当时奢侈今何处?只见草萧疏,水萦纡。至今遗恨迷烟树。列国周齐秦汉楚。赢,都变做了土;输,都变做了土。 对两首散曲的理解与分析,不正确的一项是 ______ A.甲曲开头化动为静,描写了兵家必争之地潼

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八年级·英语·完成句子Unit 5 Buying and Selling

I, right, he, don't, think, is _____________________________________ .

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八年级·英语·连词成句Unit 5 Buying and Selling

family, tallest, he, is, his, the, in _____________________________________ .

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八年级·英语·连词成句Unit 5 Buying and Selling

sister, thinner, are, you, than, your _____________________________________ ?

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八年级·英语·连词成句Unit 5 Buying and Selling

as fluently as, she, read, can, me _____________________________________ .

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八年级·英语·填空题Unit 5 Buying and Selling

When I was a young boy, I was so shy that my classmates often 【 1 】 (laugh) at me. I was sad but could do nothing. Later, something changed my life. It was 【 2 】 English speech contest. My mother asked me to take part in

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八年级·英语·任务型阅读Unit 5 Buying and Selling

An“unmanned” , fully automated( 自动的 )bank opened on Monday in Shanghai. It has received positive feedback from customers, especially younger ones. The equipment, set up by China Construction Bank's Shanghai Branch on Jiu

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八年级·英语·填空题Unit 5 Buying and Selling

At the beginning of this term, my PE teacher suggested to me that I should take part in the marathon( 马拉松赛跑 ). I was very surprised because I was never a good runner. In order to _____ me, he said that if I took part in

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