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【判断题】
伸展树采用双层伸展策略,即可避免最坏情况的发生()
A.
正确
B.
错误
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三
花健的分度误差一般用 ( )公差来控制。
A.
平行度  
B.
位置度  
C.
对称度
D.
同轴度
影响传动侧隙的加工误差有(AD )。
A.
基节偏差
B.
齿向误差
C.
齿圈的径向跳动   
D.
公法线平均长度偏差 
决定传染病病人隔离期限的重要依据的是
A.
前驱期
B.
传染期
C.
潜伏期
D.
恢复期
E.
临床症状期
Translation from Chinese 政治互信 into English __.
A.
political mutual trust
B.
economic integration
C.
community of responsibility.
D.
community with a shared future
汉英互译 If you do not know and do not question, can you be called a noble man?
A.
学而时习之、不亦说乎。
B.
有朋自远方来、不亦乐乎。
C.
人不知而不愠、不亦君子乎。
D.
后生可畏,焉知来者之不如今也?
汉英互译 己所不欲,勿施于人。
A.
Learning without thought is labourlost,thought without learning is perilous.
B.
By nature, men are nearly alike; by practice, they get to be wide apart.
C.
What you do not want done to yourself, do not do to others.
D.
Keep what you say and carry out what you do.
下列定额分类中属于按照编制程序和用途分类的是 ( )。
A.
材料消耗定额、机械消耗定额、工器具消耗定额
B.
施工定额、预算定额、概算定额、概算指标
C.
施工定额、预算定额、估算指标、建筑工程定额
D.
劳动消耗定额、材料消耗定额、机械消耗定额
关于巴比妥急性中毒的解救哪些是正确的( )
A.
应用中枢兴奋药拮抗肯定疗效
B.
支持疗法加速毒物排泄
C.
洗胃
D.
酸化尿液
如果所有滞后阶数中最少有一阶存在非线性Granger因果检验这种因果关系叫()
A.
最大可能的因果关系
B.
稳健的因果关系
C.
非线性因果关系
D.
线性因果关系
下列哪项不是按照感染或侵袭的病原体分类()
A.
病毒病
B.
细菌病
C.
原虫病
D.
多种动物共患疫病
垂直传播不包括下列哪种方式
A.
经胎盘传播
B.
经卵传播
C.
经活的媒介物传播
D.
经产道传播
下列动物疫病能够垂直传播的是( )。
A.
狂犬病
B.
鸡白痢
C.
布鲁菌病
D.
猪瘟
相关题目:
【单选题】“Nevertheless” is a useful word, which means _______.
A.
never
B.
hardly ever
C.
despite what has just been said or referred to
D.
seldom
【单选题】下面的说法正确的是
A.
abstract可以修饰字段、方法和类
B.
抽象方法的body部分必须用大括号包住,但是需要为空
C.
声明抽象方法,大括号可有可以没有
D.
抽象方法没有方法体
【单选题】若所有print方法均为static,则其结果输出为
A.
Manager Employee
B.
Person Person
C.
Manager Person
D.
Person Manager
【单选题】A, B独立
A.
0.5
B.
0.6667
C.
0.8333
D.
0.9
【单选题】$\lim_{x\to \frac{\pi }{3}} \, \frac{\sin (x)}{\cos (x)+1}$
A.
$\frac{1}{\sqrt{3}}$
B.
$-\frac{1}{\sqrt{3}}$
C.
$\frac{1}{2}$
D.
$-\frac{1}{2}$
【单选题】Why does the memory becomes smaller and smaller?内存“越来越小”的原因是:
A.
With more and more processes running on one computer, the average memroy size for each process is getting smaller 机器上运行的程序越来越多,平均每个程序使用的内存变小
B.
The real-world applications call for rocketing memory storage 实际应用对存储的需求急剧增长
C.
The silicon used for producing chips is soon running out 用于制造内存芯片的硅资源消耗殆尽
D.
The physical size of memory chips is getting smaller thanks to the advances in technology 随着工艺的进步,内存的体积变小,集成度变高
【单选题】How to engage in other people’s discussion in a seminar when you are not fully prepared?
A.
Follow the lecture closely and look for opportunities to ask relevant questions.
B.
Pretend you’re fully prepared and listen carefully
C.
Ask people around for help
D.
Record all the lecture and learn it later by yourself
【单选题】The baby carrying the DNA of three parents is an experimental specimen, aiming at ______.
A.
having more babies
B.
having babies with genetic modification
C.
eliminating genetic diseases in newborns
D.
innovating in the field of life science
【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.
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