刷刷题-logo
logo - 刷刷题
大学职业技能学习工具
下载APP
【单选题】
$\lim_{x\to 0} \, \frac{(x+1)^{\frac{1}{n}}-1}{x}$
A.
0
B.
1
C.
$n$
D.
$\frac{1}{n}$
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三
动火作业实际作业开始时间为?
A.
部门负责人审批时间
B.
申请自行填写时间
C.
厂办审批时间
D.
验票人提交到完工节点时间
动火作业票在机修间动火可以开具
A.
一级动火
B.
二级动火
C.
不用开作业票
动火作业票是否删除在哪个节点
A.
申请人
B.
申请部门
C.
验票人
D.
完工
动火作业票完工节点可以退回到哪个节点
A.
申请人
B.
申请单位
C.
验票人
D.
都可以
不是动火作业危害辨识的有
A.
火灾
B.
烫伤
C.
爆炸
D.
中毒
需要持证的动火作业方式的是
A.
焊接作业
B.
打磨作业
C.
明火作业
D.
切割作业
下述哪项能查看当前流程节点
A.
流程
B.
日志
C.
传阅
D.
传阅记录
一级登高最高审批节点为
A.
申请单位
B.
安环部
C.
厂办
二级登高最高审批节点为
A.
申请单位
B.
安环部
C.
厂办
三级登高最高审批节点为
A.
申请单位
B.
安环部
C.
厂办
登高作业主要劳保用品为
A.
安全带
B.
工作服
C.
安全鞋
D.
劳保手套
受限空间作业首次气体检测有谁来填报
A.
申请人
B.
申请单位
C.
安环部
D.
厂办
作业过程气体检测有谁来完成
A.
申请人
B.
申请单位
C.
安环部
D.
厂办
受限空间作业检测气体为
A.
硫化氢(ppm)
B.
一氧化碳(ppm)
C.
可燃气体(%LEL)
D.
氧含量(%)
受限空间作业最重要的劳保用品有
A.
安全带
B.
防毒面具
C.
正压式空气呼吸器
D.
安全帽
受限空间气体检测设施为
A.
可燃气体检测仪
B.
有毒气体检测仪
C.
压力仪表
D.
四合一气体检测仪
受限空间作业过程气体检测最少频次为
A.
10分钟
B.
20分钟
C.
30分钟
D.
1个小时
受限空间作业描述对的为
A.
先检测后通风再作业
B.
先通风再检测后作业
C.
不产生有毒气体的地方不用检测
受限空间作业票完工后还会由谁来审核
A.
申请人
B.
申请单位部门领导
C.
安全干部
D.
厂办
盲板作业票最高审批节点
A.
申请单位
B.
安环部
C.
厂办
吊装作业<40T属于属于几级作业
A.
一级吊装
B.
二级吊装
C.
三级吊装
吊装作业≥40T≤100T属于几级作业
A.
一级吊装
B.
二级吊装
C.
三级吊装
吊装作业>100T属于几级作业
A.
一级吊装
B.
二级吊装
C.
三级吊装
临时用电的最终审批节点是
A.
申请单位
B.
安环部
C.
厂办
D.
设备部
断路安全作业证终极审批部门为
A.
申请单位
B.
安环部
C.
厂办
D.
设备部
动土安全作业证终极审批部门为
A.
申请单位
B.
安环部
C.
厂办
D.
设备部
以下哪些属于事故分类
A.
人身伤害事故
B.
工艺设备事故
C.
环境污染事故
以下哪些属于事故分级
A.
Ⅰ级
B.
Ⅱ级
C.
Ⅲ级
D.
Ⅳ级
以下哪些属于事故报告中的必填项
A.
事故分级
B.
事故现场照片
C.
根本原因
D.
发生地点
以下哪些属于事故报告中的根本原因
A.
保护装置、警示系统缺陷
B.
培训教育不到位
C.
隐患整改落实不到位
D.
风险辨识不到位
以下哪些是属于装备设施
A.
安全附件
B.
灭火器
C.
叉车
D.
管道
装置设施信息包含哪些
A.
装置设施型号
B.
装置设施用途
C.
装置设施名称
相关题目:
【单选题】B-trees are 树结构上的特点是:
A.
short and chubby, with each node having at most two children矮胖,每个节点至多两个孩子
B.
short and chubby, with each node having potentially many children矮胖,每个节点可有多于两个孩子
C.
tall and slim, with each node having at most two children瘦高,每个节点至多两个孩子
D.
tall and slim, with each node having potentially many children瘦高,每个节点可有多于两个孩子
【单选题】B-trees have small height so as to B树的层数少有助于:
A.
reduce the number of I/O operations 减少I/O次数
B.
reduce the time consumption for a single I/O 减少每次I/O的时间
C.
reduce the asymptotic time complexity for seaching 降低查找的渐进时间复杂度
D.
reduce the storage requirement 节省存储空间
【单选题】In the Academic Writing part, Alex discussed with Ruoqi on academic skills, such as ______.
A.
plagiarism, paraphrasing and summarizing
B.
plagiarism, paraphrasing and synthesizing
C.
how to avoid plagiarism, paraphrase and summarize
D.
how to avoid plagiarism, paraphrase and synthesize
【多选题】运动休闲可以( )。
A.
减轻医疗负担
B.
增强抵抗力
C.
减少疾病
D.
促进心理健康
E.
缓解精神压力
【单选题】Through the group discussion between ______ , we figured out the differences between adolescence and adulthood.
A.
Abbas, Zuowan and Jialin
B.
Billy, Xuanhui and Jialin
C.
Abbas, Xuanhui and Jialin
D.
Billy, Xuanhui and Zixiao
【单选题】下面说法正确的是
A.
FileWriter类是Writer类的子类
B.
FileWriter类是OutputStreamWriter类的子类
C.
FileWriter类是FileOutputStream类的子类
D.
Wirter类是OutputStreamWriter类的子类
【单选题】What's the return value for a failed search in a B-tree of order 4?B树查找算法若最终失败,返回值为:
A.
None
B.
NULL
C.
A pointer to the last examined node 指向最后一个所查找节点的指针
D.
A pointer to the root 指向根节点的指针
【单选题】Which of the following is NOT the reason why she does not like to take photos with the camera?
A.
It was easy to break
B.
It was too heavy
C.
it is easy to get stolen
D.
it is too expensive
【单选题】What “eat earth” means?
A.
Having to spend less after spending a lot during the shopping festival.
B.
Living a luxurious life after earning a lot of money.
C.
Having failed to live a modest life.
D.
Living a luxurious life.
【单选题】Popular novels can be adapted and made into ____; ____ and _____.
A.
films; television programs; video games
B.
cartoons; dramas; games
C.
websites; televisions; audio programs
D.
films; cartoons; games
【单选题】下面说法中错误的是
A.
FileReader类是Reader类的间接子类
B.
InputStreamReader类是Reader类的子类
C.
BufferedReader类可以读取一行
D.
BufferedReader的readLine()函数,如果没有数据时会返回0
【单选题】What's the 'overflow' for a B-tree?B树的上溢是指:
A.
The property of a B-tree is violated due to removing a key 删除关键码后违反了B树的性质
B.
The property of a B-tree is violated due to inserting a key 插入新的关键码后违反了B树的性质
C.
The property of a B-tree is violated due to a split 分裂后违反了B树的性质
D.
A B-tree becomes too high B树的高度过高
【单选题】设随机变量服从区间(0,2)上的均匀分布,则$Y=X^{2}$在(0,4)上的密度函数为()
A.
$\frac{1}{3\sqrt{y}}$
B.
$\frac{1}{\sqrt{y}}$
C.
$\frac{1}{2\sqrt{y}}$
D.
$\frac{1}{4\sqrt{y}}$
【单选题】Which consequence follows as a B-tree becomes higher?B树高度的增加一定伴随着:
A.
Each node has a larger number of keys 每个节点所存放的关键码数量增加
B.
Each node has a smaller number of keys 每个节点所存放的关键码数量减少
C.
Splitting to the root 分裂到根
D.
Splitting to the leaves 分裂到叶
【多选题】Gardening is ______.
A.
a great daily exercise
B.
a great way to keep your lawn beautiful
C.
a great way to keep you healthy
D.
landscape painting
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Why is Billy a bit disappointed about the film?
A.
The quality of the film is comparable with the novel itself.
B.
The movie is unbelievable, for the plot is not true to the novel.
C.
The stories producers and directors tell are unbelievable.
D.
While adapting the original novels into films, producer exaggerated too much.
【单选题】The differences between the original novel and their adapted film depend on _______, _______ and _______.
A.
writers; actors; audience
B.
writers; actors; producers
C.
directors; actors; audience
D.
directors; producers; audience
【单选题】The underflow of a B-tree happens whenB树的下溢发生于:
A.
the height of the tree decreases B树高度减少
B.
the property of the B-tree is violated due to inserting a key 插入关键码后违反了B树的性质
C.
the property of the B-tree is violated due to deleting a key 删除关键码后违反了B树的性质
D.
inserting a key to a leaf node 在叶节点插入关键码
【单选题】The height of a B-tree decreases only whenB树高度的减少只会发生于
A.
merging two children of the root 根节点的两个孩子合并
B.
removing the root 根节点被删除
C.
rotating the root 根节点发生旋转
D.
there are multiple keys in the root 根节点有多个关键码
【单选题】Why do Amanda and Zheyu feel very down today?
A.
They are worried about homework.
B.
They are worried about exams.
C.
They are worried about interviews.
【多选题】以下哪种说法是正确的——
A.
人生观是对人生目的、意义的根本看法
B.
世界观是人生观重要组成部分
C.
价值观是人生哲学的核心,是人与人之间对于人生价值的不同看法
D.
哲学只是关于世界观的学问
【单选题】What does “be apt to do something” mean?
A.
be more likely to do something
B.
be angry to something
C.
be happy to do something
D.
be taught to do something
【多选题】A node in a red-balck tree could be红黑树节点的颜色有
A.
red 红
B.
black 黑
C.
yellow 黄
D.
blue 蓝
E.
green 绿
F.
purple 紫
【多选题】被称为中国新四大发明的有哪些?
A.
网络购物
B.
支付宝
C.
高铁
D.
抖音
E.
拼多多
F.
共享单车
【单选题】What does “turn out” imply?
A.
The reason for doing something.
B.
Something happens in that way or has the result the consequence of something.
C.
The potential risk of doing something.
D.
The original plan of doing something.
【单选题】What's unique about red-black trees compared to AVL trees? 红黑树相比于AVL树的特点是:
A.
The balance factor of each node falls within [-1, 1] 每个节点的平衡因子的绝对值不超过1
B.
It is a balanced binary search tree 是平衡二叉搜索树
C.
The search time is O(lgn) 支持O(lgn)时间的查找
D.
The topology changes no more than O(1) after each insertion/deletion每次插入/删除后拓扑结构的变化不超过O(1)
【单选题】You may choose one or more than one correct answer(s).1. Why is the student coming for the teacher?
A.
He quarreled with his classmates.
B.
He was stressed about the college entrance examination.
C.
He missed several classes due to illness
D.
He was often stressed when he faced an academic problem.
【多选题】好的选题从哪里来?
A.
知己知彼:你对一个领域的了解程度会直接影响你的选题
B.
现实需求:真正来自现实生活的需求最有生命力(洞察力)
C.
长期思考:有的问题需要多年的思考
D.
宽广胸怀:一个人的出发点直接决定了选题可能的高度
E.
好的选题非一日之功
【单选题】下列集合中,有最大值的集合是 ( ).
A.
$ \{x|x\in (0,1),x\in Q\} $
B.
自然数集
C.
有限个数构成的集合$ \{a_1,a_2,\cdots,a_n\} $
D.
$ \{x\in R|x^2-2x-3 < 0\}$
打开"刷刷题APP",使用更方便
打开APP