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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|}=
精选练习题目
They are going to visit some ______(外国的) countries next week.
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May I have a rest?I have already finished ______ (write) a report.
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这些是我的棒球。 my baseballs.
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他的收音机在桌子上。 is on the table.
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他的书在书橱里。 His books are .
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你会拼写“地板”吗? you “floor”?
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她的时钟在哪里? Where is her ?
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我是一名老师,但我的弟弟不是。 I am a teacher, my brother .
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她的书和磁带在书柜里。 Her books and tapes are .
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杰克的房间不整洁。他的书到处都是。 Jack's room isn't . His books .
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Which do you prefer to use when you are studying, ipads or books? Here is 【 1 】 survey about it. Some students think that iPads are 【 2 】 (good), because iPads can give them more choices. They can search for information
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选词填空 present, minute, one, physics, last 【 1 】 In the UK, each lesson ________ for an hour. 【 2 】 There is a big sports meeting ________ a year in our school, 【 3 】 My home is not far, it’s only five ________ by bicycle.
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单词拼写 【 1 】 John was ________( 缺席 ) from school yesterday because he had a bad cold. 【 2 】 I don’t think the most difficult subject is __________( 地理 ). 【 3 】 In our school, there are a lot of after- school __________( 活动
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It doesn’t matter you forgot doing the cleaning, _______, homework must come first.
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You don’t want to go to the cinema, let’s go to the concert ________.
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If you can’t finish the work on time, I will offer you _______ persons to help you.
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The poet says flowers push the door of spring open. I want _______ thanksgiving can push the door of life open. If you see the world _______ a thankful heart, you will find that the world is very _______ . Now we are lea
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请阅读一张 “ 共享小图 ” (一种新型社区图书馆)的海报 , 根据所提供的信息 , 完成信息卡。 It's a Mailbox… It's a Bird House… No. Wait. It's a Library! Sunshine Park Has A Little Free Library! Bryan Lim is excited to be the director of the Little Free Library f
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Cycling is exciting.Skiing is exciting too. (合并成一句) Cycling is ______ ______ ______skiing.
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I don't want to become a singer.I think. (合并) I ______ think I ______ to become a singer.
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