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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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The sentence structure(结构)of"He often makes me laugh"is _________.( )
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The sentence structure of"We must keep our classroom clean and tidy."is ______.( )
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You must keep your eyes _______ while the eraser is passing.( )
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Most parents don\’t know what their teenage children are talking about when they are having a chat with their friends.This is also true when teenagers are using the language of texting to send messages.Words like 18 r ar
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—I don’t care __________. In this camp, there’s only one hairstyle-short! Understand? —Yes, madam!
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—Sir, should I park my car here or underground? —________, please. No parking here.
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— Do you like playing sports or watching TV? — _________.So I often watch soccer games on TV.
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-Would you like a small bowl, medium bowl or large bowl? -_______.( )
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— Is your cousin tall or short? — ________.He's of medium height.( )
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—Do you get to school by bus or by bike? — .It's good exercise.( )
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—What time does Tina usually brush her teeth? — ______.
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Tina tells us the importance of making good ______ (决定),and of being in control of one\’s life.
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Before Chinese New Year,many people collect five "fu" on their smart phones for good _______.( )
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At the present time,more and more people love travelling.It\’s a very good(1)______of getting to know new people and cultures and acquiring(获得) experiences.It helps travellers(2)______a lot.Travel can make our minds beco
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请找出划线部分发音与其他三个不同的单词. The G erman workers will build a brid g e next to the lar g e play g round next year.( )
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She likes it because it is very ______(interest).
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The girl long black hair my cousin.( )
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你想告诉Kate在最近几年泉州发生了很大的变化,可以这样说: ______ in Quanzhou.
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