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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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Doctors______ people to wash hands for at least 20 seconds(秒钟) each time.( )
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A:Good morning,doctor! B:Good morning,young man!(1)______ A:I have a sore throat(喉咙痛).(2)______ B:How long have you been like this? A:(3)______ B:Have you taken your temperature? A:Yes.My temperature is OK. B:(4)______ S
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Complete the dialogue with proper words, one word for each blank. A: I'll miss you, Diana! B: Oh, I feel just the 【 1 】 ! We must try to continue our friendship, even though we will no 【 2 】 be at school together. A: Yes
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句型转换 【 1 】 I'm afraid to be alone.( 改为同义句 ) I'm afraid ________ ________ alone. 【 2 】 Could you tell me where we show our tickets?( 改为同义句 ) Could you tell me ________ ________ ________ our tickets? 【 3 】 They had fun in
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根据汉语意思完成下列句子 , 每空一词 【 1 】 每次我看到这张照片 , 我都会对它微笑。 ________ ________ I see this picture,I will ________ ________ it. 【 2 】 春天来了 , 天气一天天地暖和起来。 When spring comes,it's getting warmer and warmer ________ ________ ________ . 【 3
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These animals are in danger.We should think about ________ to protect them.
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Let's keep quiet.I'm ________ waking up my father.
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China is becoming stronger and stronger ________.
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Lucy is a kind and outgoing girl.And we want to make friends ________ her.
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用方框中所给短语的适当形式完成下列句子 , 使句子通顺、正确 worry about,in silence,make friends,no one,day by day 【 1 】 It is hard for him to ________ with others. 【 2 】 He was left alone,with ________ to look after him. 【 3 】 I don't think you need
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用方框中单词的适当形式填空。其中有两个单词多余。 from, is, ready, on, or, choose, even, chance, role, listen, sick, hear Friendship is very important in our life. Everyone should at least have one 【 1 】 two good friends. But what are good frien
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根据对话内容 , 从方框中选出能填入空白处的最佳选项。其中有两项为多余选项。 A: Morning. This is Friendship Helpline. B: Hello. 【 1 】 A: Can I help you, Wang Fei? B: Please give me some advice on how to make friends. A: OK. 【 2 】 When you smile, people think
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句型转换 【 1 】 I want to know. Who is she?( 合并为一句 ) I want to know ________ ________ ________ . 【 2 】 Try to translate every word into Chinese.( 改为否定句 ) Try ________ ________ translate every word into Chinese. 【 3 】 Was the
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根据汉语意思完成下列句子 , 每空一词 【 1 】 上周我和我的学生们产生了矛盾。 I ________ ________ ________ ________ my students last week. 【 2 】 他对他的学生一直很有耐心。 He's ________ ________ his students all the time. 【 3 】 我们确信贝蒂后悔拒绝了你。 We're sure Betty ________ _
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—Would you please help me with my writing skills? — ________.You can come to my office every Saturday.
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I regret ________ her advice on how to make fewer mistakes.
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Can you tell me ________ your bike this Sunday?
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Miss White encouraged Lucy ________.
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The English channel of school radio station will choose some students to work there. Reporters wanted Do you like talking with people?Do you like meeting interesting people?We want two reporters for our station.If you're
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语法专练:句型转换 【 1 】 Light travels faster than sound.Almost all the people know.( 改为含宾语从句的复合句 ) Almost all the people know ________ ________ ________ faster than sound. 【 2 】 I believe there will be a bus.( 变为否定句 ) I ________
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