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高频错题
#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
您能允许我们在您的花园里玩耍吗? Could you please______ in your garden?
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- Lucy is ___________ great pain because of her father's death. -We should think of a way to make her happy.( )
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If you___________ money for disabled children, it means you collect money for them.( )
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选出可以替换划线部分的最佳选项. - Keeping a pet dog brings me much joy. -Dogs are man's friends. They can make people not feel lonely.( )
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选出可以替换划线部分的最佳选项. -If you don't often do sports,you will get illnesses . -I see. However, I always have much work to do.( )
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如果你想身体健康,你必须坚持锻炼. If you want to be______, you must keep exercising.
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have fun,visit Shanghai Disneyland Resort,if,why not,you,want to ______
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Ocean Park,Victoria Harbour,Hong Kong,with,a popular tourist attraction,many landmarks,such as,is,and,in China ______
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He makes perfect bread and cakes,which you can taste and buy at this ______ .(bake)
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P&G is one of the ______ in the mass market of the cosmetics industry.(lead)
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There is nothing ______ to be done for this man unless he himself works hard.(far)
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All the displays in this museum show the brilliance of China's ancient ______ .(cultural)
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If your pharmacy doesn't stock the ______ you want,have them order them for you.(produce)
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They like this valley very much and even marked it on the map as a ______ route.(scene)
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went,before,she,us,asked,she,shopping,we,needed,what ______
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Daisy,the,since,worked,2001,hotel,has,in? ______
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He ______ the pictures in his own words.(description)
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Will you please ______ the third paragraph again for us?(explanation)
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Surely the most ______ thing would be to accept their offer.(sense)
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If you have any questions,you may ask for information from the ______ desk.(receptionist)
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