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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·solution日常生活类阅读

Hello,my name is Wu Fang.I am(1)______Anhui.I\’m 13 years old.I\’m a(2)______in Class Three,Grade Seven.I am thin(3)______friendly.I (4)______a black cat.It is very(5)______.I (6)______play with it. (7)______ school,I ha

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七年级·英语·solution日常生活类阅读、介词固定搭配、形容词词义辨析、记叙文、判断推理

Cats like fish but rabbits like eating c ______.

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七年级·英语·choice语音

选出单词r u n中划线部分的正确读音______.( )

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七年级·英语·solution日常生活类阅读、应用文、判断推理、文中细节

Alex is a young boy.He likes music very much.He wants to play the piano and join the school music club.But all these things are difficult for him.Why?Because he has no hands. Alex thinks he can never play the piano and f

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七年级·英语·solution形容词

Sandy looks ______/slɪm/ in that yellow dress.

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七年级·英语·solution词根词缀、记叙文、史地常识类阅读、文中细节

Do you know Chatbots(聊天机器人) and other AI programs(人工智能项目)?Do (1)______(student) need them at school,Do teachers need them at school,too?People look at it in different ways. Some people think Chatbots are useful to help s

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七年级·英语·choice实义动词、实义动词的单数第三人称形式、动词短语

The actor_____of medium height and_____straight yellow hair.( )

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七年级·英语·solution健康环保类阅读、议论文、文中细节

Advice for students Students\’ problems: Li Wei (1)______I find it hard to have time for my hobby now. Hu Nianzu (2)______I feel shy meeting new people in junior high. Mia (3)______I often lose things,such as my red scar

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七年级·英语·solution人物故事类阅读、文中细节

Peter Pan is one of the best-loved children\’s books of all time.It was a play(戏剧)at first,as it became very popular and the writer James Matthew Barrie decided to write a novel.Barrie was born in Scotland,and he is the

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七年级·英语·solution一般疑问句

What ______(颜色) are the trousers?

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七年级·英语·choice形容词词义辨析、记叙文、人物故事类阅读、判断推理

I______short and thin five years ago.Now I_______ tall and strong.( )

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七年级·英语·solution写作

我爷爷的农场有二十只鹅.(英文表达) There are ____________on my granddad\’s farm.

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七年级·英语·choice语音

选出划线部分的发音与其他单词划线部分不一致的选项.( )

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七年级·英语·solution现在完成时、完成句子

吴斌斌比他的弟弟强壮. Wu Binbin is ______than his brother.

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七年级·英语·solution日常生活类阅读

I\’m Kangkang and I study at a middle school in Beijing.Our school life is fun and colorful.On the morning of every Monday,we raise the national flag.We start the first class at 8:00 a.m.every day.We study Chinese,Englis

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七年级·英语·solution日常生活类阅读、介词固定搭配、记叙文

I have two friends,Teng Fei and Fu Xing.Teng Fei (1)______( be ) from Shanghai.He is 13 (2)______ ( year ) old .He (3)______ ( have ) short hair.(4)______ ( he ) favourite sport is basketball,and he plays basketball very

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七年级·英语·solution介词短语

in ______

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七年级·英语·choice日常生活类阅读、记叙文、判断推理、文中细节

—What\’s his telephone number? — 2365-4568.( )

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七年级·英语·solution动名词

Daniel is a fan of science.He wants to be a ______(科学家)when he grows up.

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七年级·英语·choice语音

下列划线部分发音与其他三项不同的一项是____________.( )

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