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安全教育习题 8969

下列不属于网络安全的特征的是:

tcsec定义了系统安全的5个要素,下列不属于的是:

当你感觉到你的win2000运行速度明显减慢,或者当你打开任务管理器后发现cpu的使用率达到了百分之百,你最有可能认为你受到了哪一种攻击?

人为的恶意攻击分为被动攻击和主动攻击,在以下的攻击类型中属于主动攻击的是?



目前网络存在的安全威胁有以下几种?

计算机网络中,数据加密的方式只有链路加密、结点加密两种方式。

数据在传输中途被破坏了数据的完整性。

入侵检测技术主要包括:滥用检测技术、异常检测技术、高级检测技术、入侵诱骗技术和入侵响应技术。

安全攻击分为_____________攻击和______________攻击。

计算机安全主要为了保证计算机的_______、_______、_______。

加密技术的三个重要方法是:

关于加密技术,下列错误的是。

ssl指的是。

在加密过程中,必须用到的三个主要元素是( )

以下对于混合加密方式说确的是( )

加密密钥和解密密钥必须是相同的。

单表代换密码的一种典型的算法是凯撒密码算法,又称为循环移位密码算法。

rijndael是一个分组密码算法,其分组长度和密钥长度相互独立,都不可以改变。

基于对称密码与非对称密码的优缺点,为提高加密速度,在加密过程中,一般采用________密码进行密钥传输,采用_______密码进行数据加密。。

wpa所使用的加密算法是________,此种算法支持的密钥位数是__________位。

一国在一定时期内进口额大于出口额则形成( )

别国出口货物通过本国国境,未经加工改制,在基本保持原状条件下运往另一国的贸易活动为( )

以货物通过国境作为统计进出口的标准是( )

什么是国际贸易?它与国内贸易有什么区别?

根据技术差距理论,我们不能够得到的信息是()

根据产品生命周期理论,在产品生命的不同阶段,产品的要素密集度会发生规律性变化,那么,在初始期、成长期、成熟期等三个阶段,产品类型分别是()

《胭脂扣》有哪三“奇”?

李碧华小说中最为重要的一个主题是( )

李碧华哪部小说被改编成电影后首获大奖?

下面哪项不属于李碧华奇情小说的重要元素?

《胭脂扣》这部小说的主人公是谁?

李碧华下面哪部小说是根据民间传说改编的?

《胭脂扣》被香港本土作家梁秉钧形容为掀起了香港整个怀旧潮,使其成为( )文类的滥觞之作。

下面哪个人物不具备李碧华笔下的边缘性形象特色?

李碧华小说中男女性形象的呈现出怎样一种鲜明对比关系?

以下李碧华的小说哪部没有改编成电影?

李碧华的小说蕴含着丰富的电影元素,具有适合走向银幕的潜质,主要体现为?

何为传奇小说?李碧华的小说的传奇性主要体现在哪些方面?

《雷雨》运用了古希腊悲剧中( )和( )的结构技巧

曹禺在《日出》里采取了( )戏剧结构

曹禺的处女作是( )

曹禺的( )获得了《大公报》文艺奖金

在表现主义戏剧技巧上,《原野》主要受到剧作家( )的影响

曹禺剧作中一种不言自明的美学原则是( )

《雷雨》《日出》《原野》被合称为()?

试述《雷雨》和《日出》的戏剧结构之异同

分析陈白露的性格特征?

莫言创作的两大财富是( )

《红高粱》里赋予( )童心视角

莫言在1980年代的重要作品有( )( )( )

《红高粱》采用了( )( )( )( )等多重叙事视角

《红高粱》采用的儿童叙事视角给作品带来( )和( )的艺术效果

著名文学评论家雷达指出,红高粱精神是( )( )

莫言作品表现了农民的 ( )( )

简述“我奶奶”戴凤莲的叙事视角所表现的戴凤莲的人物心理和性格。

以“红高粱精神”为例,简述象征在作品中的作用

哪位现代作家第一次打破了新文学与农民之间的隔膜?

赵树理在小说形式方面开创了( )体式?

赵树理的成名作是( )

赵树理的青年经历,使他希望成为一个( )

在小说创造性地反映现实生活方面,赵树理开创了( )这一新的小说类型。

在《李有才板话》中,和章工作员构成对比的人物是( )

为了宣传赵树理取得的文学成就,推动《在延安文艺座谈会上的讲话》精神的传播,1947年陈荒煤提出了( )的口号。

艾青成名作品是( )

艾青诗歌中的核心意象是( )( )

现代诗歌的主要诗体是( )

下列不属于艾青的作品是:( )

艾青诗歌中的两大核心意象是:( )

艾青提出“诗的散文美”,他是基于诗歌的哪种体式?( )

艾青的成名作是哪部诗篇?

( )将艾青称为“吹芦笛的诗人”

《平凡的世界》里路遥选取了哪个时段( )作为背景年代?

路遥在《平凡的世界》里更为欣赏的人物是( )

鲁迅的哪部作品( )成为新文化运动批判封建意识形态的石破天惊之作?

传统文艺奉行( )和( )的中和美学

巴金的( )被学术界认为是“讲真话的大书”

杨绛唯一的人生目标是( )

海子的哪首诗歌用象征的方式表达了刻骨铭心的孤独体验?

昌耀用( )定义自己诗歌的声学品质

文学传统中直接将情感与季节对接的表述至少有( )( )两大类

林语堂把现代散文分为( )( )两派

______ present a miniature of the whole paper.

2. what will be freely accessible to readers online?

3. what titles are recommended?

4. which of the following is not the correct author order?

2. which of the following strategy is not recommended?

3. what questions are asked to paraphrase the title?

which of the following is not explaining the importance of the title?

2. when is a good title often written?

3. which of the following is not mentioned as a good scientific title feature?

4. which of the following is not a clear and persuasive title?

what questions can be asked about the paper?

2. a working title uses _______

3. what information can be deleted?

which of the following don’t is mentioned?

2. what will diminish the seriousness of the science study?

3. what title format is suggested?

which of the following is not a scientific abstract?

the scientific abstract aims to________

what are the two primary types of abstracts?

reading a scientific abstract involves_______

what information can abstract-scanning reveal?

which of the following is not mentioned?

which of the following is not to create an effective abstract?

what functions does an effective abstract have?

which of the following is not a scientific abstract?

which of the following is correct?

what does abc of a good abstract refer to?

which of the following strategy is not mentioned?

how many keywords are recommended?

what questions can introduce the background?

which of the following is not to explain the methods?

which of the following is mentioned?

new information should be________

the maximum sentence length is ________

references should be ________

compared with general english writing, academic writing tends to be more

the general structure of academic writing consists of

which of the following is not a feature of academic text?

1. which of the following is not a reading purpose at the before-reading stage?

2. at the during-reading stage, what instructions about text scanning have not been mentioned?

3. at the after-reading stage, what information about new words should be noted?

1. to accomplish good academic writing, writers should______

2. how do academic writers support their claims with evidence?

3. which of the following is not correct about nominalizations in academic writing?

1. which of the following is not correct about academic writing?

2. the academic language can not be acquired through ______.

3. what are the recommended procedures for writing academic texts?

1. which of the following is not a tip for good academic writing?

2. in terms of punctuation, which of the understanding is not correct?

3. what signpost expressions have been mentioned in lecture?

the introduction aims to ________

which of the following will not appear in introduction?

what does a well-organized introduction include?

what questions can help understand the study background?

which is not to evaluate the study importance?

which is not to explain the new approach?

the paper organization is outlined_________

which is not to inform readers about the study?

how to convince readers of the study importance?

which will not appear in introduction?

what is suggested to orient the reader?

how to present the research problem clearly?

the essential part of the introduction should be________

which don’t is not mentioned?

imprecision and confusion are often caused by _________

which of the following statement is correct?

the materials and methods section aims to show________

what could be found in this section?

important features include________

what can evaluate the competency of methods and materials?

what will effective materials & methods inform readers of?

which is the second reading strategy?

the experiment procedures should be described _________

_________ can facilitate the understanding of experiment.

what information does methods and materials contain?

the methods and materials is usually written________

the passive voice is used to ________

previous methodology should ________

it is necessary to list the chemical and physical properties of all samples .

the materials and methods section is usually straightforward and inclusive of necessary details.

adequate and necessary procedures should be presented for readers to __________ the study.

the __________ of the procedures should be saved for the discussion section.

don’t put __________ of the study in the materials and methods section.

it is unnecessary to describe basic procedures in great __________.

published methods should be used with __________.

the results can be presented in ________________.

the tables and figures should be constructed to deliver a ________________.

the combined or ________________ of results and discussion varies for different journals.

the discussions highlights ________________ of the main findings.

the results ________________ collected from the study.

the main function of discussion is to make suggestions for future study.

the limitations of the research findings should be avoided in discussion.

considerations of future study directions might be expected in this section.

wider implications, if there are any, should be presented at the end of this section.

texts and tables in this section should be complementary.

the text usually precedes tables or figures.

the table & figure titles and captions can help readers understand the data.

the sequence of data presentation lies in their tiers of significances.

the results that contradict the research aim should be deleted.

the results can be more understandable with the accompanying __________ of the results.

the results and discussion should keep a steady focus and be concise and __________.

the discussion can be used to acknowledge __________ or any alternative explanations.

the __________ tense is suggested to interpret the results obtained from the study.

reiteration of the results is an important part of the discussion.

both strengths and weaknesses of the study should be interpreted in discussion.

possible future research directions should be indicated at the beginning of discussion.

the restatement of the major contribution should be presented at the end of the discussion.

the raw data should all be collected and presented in the results.

the table or figure captions should be as specific and informative as possible.

tables or figures should be presented before they are mentioned in the text.

a simple explanation of the data in results is acceptable.

reference to the results from tables should be presented in the ________ tense.

keep results and discussion scientific and leave ________ feelings out of it.

the controlled experiment is to eliminate the need to ________ anything.

the main data of the results usually come from the ________ raw data.

the results should be ________ while the discussion should be interpretive.

the conclusion should enable readers to reconsider the value of the study.

the focus of the discussion is the interpretation of the results.

the conclusion can either be independent or part of discussion

the conclusion can only take at most two paragraphs.

the present tense is used to summarize the work undertaken

the conclusion provides the most__________ ysis of the study findings.

the major __________ drawn from the main results should be evaluated

the _________ data or consistent data should both be evaluated

considerations on how to overcome the __________ should also be presented.

the broader __________ of the study can be expected in conclusion

most readers will only read the conclusion first

different types of scientific papers will require different types of conclusion.

the function of the conclusion is to restate the main argument

the study limitations should be avoided in the conclusion

suggestions for future study should be included in the conclusion

the value of the conclusion is to demonstrate the writer’s ________ thinking skills.

this lecture introduces ________ writing strategy for the conclusion

the conclusion is expected to ________ the implications of the findings

the limitations of the study could be integrated into the ________.

________ is desirable but only if it can be achieved honestly and accurately.

conclusions should be drawn based on the ________ evidence.

________ should be checked for logical expression.

________ language should be avoided

don’t bring in ________ materials in the conclusion.

which of the following refers to research contribution?

where is the acknowledgements usually found in scientific paper?

which of the following can be found in the acknowledgements?

the contributors are usually acknowledged in order of________.

personal thanks to non-research contributors always come________.

author’s gratitude to iniduals or institutions for academic assistance could be read in the acknowledgements.

contributors are usually acknowledged collectively by name.

acknowledgements should first be given to those offering academic help

acknowledgements to people for their provision of equipment should last be given.

family members should also be acknowledged for their moral support.

specific rules for acknowledgements might differ among different journals.

acknowledgement is to enable researchers to express their gratitude in print.

acknowledgements should be started with thanks for iniduals and ended with thanks for institutions.

the acceptance of remaining possible errors should be avoided.

the name of any iniduals should be ensured of its ___________

when it comes to personal thanks to family members, strong___________ language should be avoided.

the word “wish” is usually considered as ___________ in the acknowledgements.

be sure to obtain ___________ from anyone included in the acknowledgements.

the numbers in the reference list must _________ to the citation numbers.

_________ is frequently used referencing style in the uk and australia.

_________ is mainly used in psychology, anthropology and education.

references can prevent _________ and be a proof of the researchers’ work.

read the last name of the author and identify the ________ reference entry by the last name in the reference list.

the author-year system presents the name of the author and the year in ________ after the in-text citation.

scan the first paragraph to identify ________ system.

which of the following is not correct?

which of the following focuses on a single main idea?

if reporting verb argue is used, what judgment can be drawn?

what of the following can present citations?

credit must be given to the sources to avoid __________

the points in the original text which writers want to introduce to their own writing should be __________.

three strategies can be combined to produce a clear and accurate paragraph: using __________; changing the sentence order and changing the __________.

the __________ text should be carefully read until the full meaning is thoroughly understood.

paraphrasing by just replacing words or phrases is called plagiari.

your own ideas or opinions can be included in paraphrasing.

reference to the author of the original text in the paraphrase should be presented explicitly.

1. which of the following is the form of correspondence?

2. which of the following is not correct?

3. how many types of correspondence are there?

4. informal correspondence is appropriate for __________

1.in which situation the addressee will expect the format and language of your correspondence?

2. formal letters or emails should follow a _____________

3. which of the following should be avoided in formal letter correspondence?

4. in formal correspondence _____________ are often used.

2. the thoughts should be ided into discrete paragraphs with each one tackling one major point.

4. for an invitation letter, the first step is to express pleasure of meeting the recipient.

5. for an application letter, relevant qualifications and experience should be stated in the opening paragraph.

采用解释执行的编程语言是脚本语言,下列哪种语言不是脚本语言( )

使用python语言在屏幕上打印“hello world”,应编写的程序代码是( )

在idle中输入程序代码并保存后,按快捷键( )运行该文件。

python语言的单行注释符是( )

下面不符合python语言命名规则的是( )

temstr[-1]表示字符串temstr变量的第( )个字符。

下面不是ipo模式的一部分是( )

python中多行注释以( )开头和结尾。

python中用( )符号表示‘赋值’。

python中用( )符号作为输入提示。

下列选项中哪些不是python的保留字?

python语言中,字符串是用( )符号或者( )符号括起来的零个或多个字符。

为什么要学习计算机编程?

python语言的特点有:

解决计算机问题包括以下几个步骤:分析问题、( )、( )、( )、( )和升级维护。

( )是python软件包自带的集成开发环境。

( )指每一行代码开始前的空白区域,用来表示代码之间的包含和层次关系。

计算机有两个基本特性:功能性和( )。

python的本意是( )

python3版本有( )个保留字。

哪个选项不能正确引用turtle库进而使用setup()函数?

关于turtle库,哪个选项的描述是错误的?

哪个选项是turtle绘图角度坐标系的绝对0度方向?

哪个选项是下面代码的执行结果? turtle.circle(-90,90)

关于turtle库绘图函数,哪个选项的描述是错误的?

关于turtle库的画笔控制函数,哪个选项的描述是错误的?

哪个选项不能改变turtle画笔的运行方向?

哪个选项所列保留字能够实现一组语句的循环执行?

turtle.fd(150)的作用是:

哪个选项对turtle.done()的描述是正确的?

turtle. 函数的作用是抬起画笔,之后移动画笔不绘制形状。

用turtle库绘制一个半圆型,可使用turtle.circle(100, )

for i in range(5)将产生 个数。

rangle(m,n)将产生m到n-1的整数序列,共 个数。

turtle. 函数的作用是设置主窗体的大小和位置。

for var in : print(var) 哪个选项不符合上述程序空白处的语法要求?

for in in range(0,2): print(i) 哪个选项是以上程序的输出结果?

k=10000 while k > 1: print(k) k = k/2 哪个选项给出了上述程序的输出次数?

哪个选项是程序的三种基本结构?

哪个选项关于循环结构的描述是错误的?

关于python语言p=-p,哪个选项的描述是正确的?

哪个选项是用来判断当前python语句在分支结构中?

哪个选项是下面代码的执行结果? for s in "python": if s=="t": continue print(s,end="")

哪个选项是random库中用于生成随机小数的函数?

关于try-except,哪个选项的描述是错误的?

for var in : print(var) 哪个选项不符合上述程序空白的语法要求?

for i in range(0,2): print(i) 哪个选项是以上程序的输出结果?

k=10000 while k>1: print(k) k=k/2 哪个选项给出上述程序的输出次数?

哪个选项是程序的三种基本机构?

哪个选项关于循环结构的描述是错误的?

关于python语句p=-p,哪个选项的描述是正确的?

哪个选项是用来判断当前python语句在分支结构中?

哪个选项是下面代码的执行结果? for s in "python": if s=="t": continue print(s,end="")

哪个选项是random库中用于生成随机小数的函数?

关于try-except,哪个选项的描述是错误的?

字符串是一个连续的字符序列,哪个选项可以实现打印字符信息的换行?

val=pow(2,1000),请用一行代码返回val结果的长度值。

以下关于字符串.strip()方能说明正确的是:

pow(x,0.5)能够计算x的平方根,计算负数的平方根将产生:

关于整数类型的4种进制表示,哪个选项的描述是正确的?

哪个选项是python语言%运算符的含义?

哪个选项是下面代码的执行结果? name="python语言程序设计课程" print(name[0],name[2:-2],name[-1])

哪个选项是下面代码的执行结果? s='python' print("{0:3}".format(s))

下面关于time库引用不正确的是?

哪个选项不是python语言的整数类型?

以下选项不是函数作用的是:

下列程序的输出结果为: def f(a,b): a=4 return a b def main(): a=5 b=6 print(f(a,b),a b) mian()

以下关于python函数说法错误的是: def func(a,b): c=a**2 b b=a return c a=10 b=100 c=func(a,b) a

以下关于函数调用描述正确的是:

以下关于模块化描述错误的是:

以下对递归描述错误的是:

以下关于函数说法错误的是:

哪个选项对于函数的定义是错误的?

关于return语句,以下选择描述正确的是:

以下关于递归函数基例的说法错误的是:

以下对递归描述错误的是:

给定字典d,哪个选项对x in d的描述是正确的?

给定字典d,哪个选项对d.values()的描述是正确的?

哪个选项是下面代码的输出结果?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪ d= {'a': 1, 'b': 2, 'b': '3'} print(d['b'])

s和t是两个,哪个选项对s^t的描述是正确的?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于python的元组类型,以下选项错误的是:

序列s,哪个选项对s.index(x)的描述是正确的?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

以下不是python序列类型的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于python组合数据类型,以下描述错误的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

列表ls,哪个选项对ls.append(x)的描述是正确的?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于大括号{},以下描述正确的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于python文件的‘ ’打开模式,哪个选项的描述是正确的?

关于csv文件的描述,哪个选项的描述是错误的?

以下选项对文件描述错误的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

python对文件操作采用的统一步骤是:

二维列表ls=[[1,2,3], [4,5,6],[7,8,9]],哪个选项能获取其中元素5?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

以下选项不是python文件读操作的是:

对于python文件,以下描述正确的是:

给定列表ls = [1, 2, 3, "1", "2", "3"],其元素包含2种数据类型,哪个选项是列表ls的数据组织维度?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于数据组织的维度,哪个选项的描述是错误的?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于文件关闭的close()方法,哪个选项的描述是正确的?

关于python第三方库安装方法,以下选项描述错误的是:

关于软件产品和程序的区别,以下描述正确的是:

自顶向下设计主要由下列哪个语法元素实现?‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于计算思维,以下选项描述正确的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于os库,以下选项中可以启动进程执行程序的函数是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

以下选项关于计算生态描述错误的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

以下选项对计算思维本质描述正确的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于python的os库,以下选项描述正确的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于用户体验,以下选项描述正确的是:‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪

关于os.path子库,以下选项中用来计算相对路径的函数是:

测量上确定点的位置是通过测定三个定位元素来实现的,下面哪个不在其中( )。

大地水准面包围的地球形体,称为( )。

通过平均海水面并延伸穿过陆地所形成的闭合曲面称为( )。

某点的经度为东经123°30′,该点位于高斯平面投影6°带的第( )带号。

以子午线投影为纵轴,赤道投影为横轴建立的坐标系是( )。

设a点的通用坐标为(38246.78,19525833.20)米,则该点所在6度带带号及其坐标自然值为( )。

地面点沿( )至大地水准面的距离称为该点的绝对高程。

测量中所用的平面直角坐标系与数学中所用的不同,应用数学中的三角公式计算坐标时( )。

高斯平面直角坐标系横轴为y。

高斯正形投影中,离子午线越远,子午线长度变形越大。

水准原点是全国高程的起点,它的绝对高程为零。

大地水准面是一个不规则的封闭曲面,大地水准面上各点的高程相等。

测量三要素是指对中、整平、定向。

已知点p的统一坐标为(2050442.5,19523775.2),则该点位于高斯投影6度带中的第 带内。

ab两点之间的高差为hab=-0.123m,则说明 点高。

水准测量是利用水准仪提供的( )来测定两点间高差的。

水准测量中,后视点a的高程为40.000m,后视读数为1.125m,前视读数为2.571m,则前视点b的高程应为( )。

中心十字丝交点与物镜中心的连线称为望远镜的( )。

水准测量中,调节圆水准气泡居中的目的是使( )。

水准测量中,立尺点分别为水准点和转点两类,在使用尺垫时( )。

水准测量中,前后视距相等不可以消除或消弱( )。

采用前后视距相等,可以消除以下( )误差

下面属于高程测量的方法有( )

高程测量就是利用水平视线来求得两点之间的高差,继而根据已知点高程推算出另一点的高程。

水准尺没有扶直,无论向哪一侧倾斜都使读数偏大。

水准仪的视准轴是十字丝中心与物镜光心的连线.

高差hab < 0,表明待求点b高于已知点

视差产生的原因在于目标影像没有与十字丝分划板重合。

水准测量中,a尺读数为1.234m,b尺读数为0.500m,则 hba= m。

水准测量中,设后尺a的读数a=2.713m,前尺b的读数为b=1.401m,已知a点高程为15.000m,则视线高程为 m

水平角测量中,( )误差不能用盘左盘右观测取平均值的方法消除。

用经纬仪观测水平角时,尽量照准目标的底部,其主要目的是为了消除(  )误差对测角的影响。

水平角测量中,哪项误差不能用盘左盘右取平均值的观测方法消除( )

采用测回法观测水平角,盘左和盘右瞄准同一方向的水平度盘读数,理论上应( )。

测回法观测水平角,若右方目标的方向值a小于左方目标的方向值b时,水平角β的计算方法是(  )

视准轴指的是( )。

用回测法观测水平角,测完上半测回后,发现水准管气泡偏离2格多,在此情况下应(  )。 a.继续观测下半测回;  b.整平后观测下半测回;  c.整平后全部重测

下列说确的是( )

采用测回法观测水平角,盘左和盘右瞄准同一方向的水平度盘读数,理论上应相差90度

角度测量照准目标时应尽量瞄准地面目标的顶部。

全站仪的整平(包括粗平和精平)是通过旋转脚螺旋来实现的。

在进行水平角观测时,不考虑仪器误差,若瞄准的是目标正上方的某点,则所测的角度与该角的实际值相同。

全站仪对中的目的是仪器中心与测站点在一条铅垂线上。

1、用6秒级测角仪器,测回法测量,得下表水平角β观测值,试完成表中的各项计算。
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