按真实条件找题
可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。
游客可浏览题目与选项;登录后可免费组卷并下载学生卷。答案解析、练习判分和错题本由 VIP 解锁。
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
We have enough rooms______ (live) in. Don't worry about that.
查看题目详情 →
The water here is safe______ (drink).
查看题目详情 →
It is not easy______ (learn) a foreign language well.
查看题目详情 →
Our teacher often tells us______ (help) the poor.
查看题目详情 →
My father always tells jokes to make us______(laugh).
查看题目详情 →
Dora was in the bathroom. The tap was (A) . "(B) Turn the tap off ," said an angry voice. "You are wasting water." Dora looked (C) , but there was no one there. "Who are you?" "I'm a drop of water." Do you know where I c
查看题目详情 →
One day a blind man and his guide dog both lost their lives in a traffic accident.On their way to Heaven,an Angel stopped them and said there was only one place left in Heaven so that one of them had to go to Hell.The ma
查看题目详情 →
Complete each gap with an item from A ~ F below.There are two more than you need.(阅读短文,从A ~ F中选择正确的句子填空,有两项多余。) A.But for now,each of us has to be smart about these imperfect" life savers". B.you must know and account fo
查看题目详情 →
This is a______(mean) vacation.
查看题目详情 →
I______(notice) he left early yesterday.
查看题目详情 →
Please remind me______(call) my parents tomorrow.
查看题目详情 →
Tell them not______ (swim) alone in the lake.
查看题目详情 →
There aren't any______(potato) in the fridge.
查看题目详情 →
My son love eating______ (sausage)
查看题目详情 →
______(leaf) on the trees turn red or orange and then fall down.
查看题目详情 →
We have taken a lot of______(photo) of our trip.
查看题目详情 →
如果你一次只做一件事并且坚持你的计划,你就能取得成功. If you do one thing______ and stick to your plan,______.
查看题目详情 →
如果你想和朋友和好的话,学会忘记和原谅是个很好的方式. If you want to______ your friend,______ to learn to forgive and forget.
查看题目详情 →
除非你放松,否则你的境况不会有改善. Your______ improve______ you relax.
查看题目详情 →
长大后我想成为一名英语教师. I want to be an English teacher when I______.
查看题目详情 →
题库使用说明
可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。
题干与选项可直接浏览;答案解析、判分、错题本和针对训练需要 VIP。
发现薄弱知识点后可继续组卷或练同类题,把一次搜索转成后续练习和错题复盘。