某放大器的输入信号和输出信号如图所示,则()。 A.该放大器是线性放大器 B.该放大

题型:单项选择题

问题:

某放大器的输入信号输出信号如图所示,则()。

A.该放大器是线性放大器

B.该放大器放大倍数为2

C.该放大器出现了非线性失真

D.该放大器出现了频率失真

考点:注册土木工程师水利水电工程2013土木工程师(水利水电工程师)基础知识考试真题及答案
题型:单项选择题

病人向护士透露个人隐私时,护士应把谈话内容()。

A.告诉其主管医生

B.告诉直系家属

C.告诉同病房的基他护士

D.告诉其他病人

E.严守秘密,不告诉他人

题型:单项选择题

下列各项比较中,不正确的是

A.原子半径:Na<Mg<Al

B.与酸反应放出氢气的剧烈程度:K<Na<Li

C.氧化性:Si>N>O

D.气态氢化物的稳定性:HF>HCl>H2S

题型:单项选择题

阅读理解。

                                                                                                                                               CWU

                                                                                                                      The communication union 

Head of Research

Salary: £55.271

     We are looking for a Head of Research to manage the CWU Research Department and Information Centre.

You would be required to exercise control of all research work of the department and manage a team of three

researchers and four support staff.

     The person appointed would be expected to carry out research work of a strategic nature across the range

of businesses in which the CWU has or seeks membership and to contribute to the strategic thinking and

direction of the union as a whole.

     You will need: proven line management skills, especially in managing and motivating a team; good research

skills, holding a good degree in a related subject or other similar experience; a high level of mathematical and

calculating skills; the ability to produce high quality work under pressure; a commitment to and knowledge of

the trade union movement and social democratic politics; and knowledge and/ or experience of the postal and/

or telecommunications industry.

     To apply, please request an application pack by emailing hr@cwu.org or by telephoning HR (Human

Resources ) on 020 8971 7482. When applying please state your source.

Closing Date for Applications: 4th August 2010

Anticipated interview date: 17th August 2010

No agencies please

1. In which column of a newspaper could we find this advertisement?

A. Arts.

B. Sales.

C. Jobs.

D. News.

2. One of the duties of the person to be appointed is _____.

A. taking charge of research work.

B. seeking membership for the trade union.

C. managing a team of three or four members.

D. running a telecommunications company.

3. If you want to apply for this position, you can do all EXCEPT _____.

A. ask an agency for an application form

B. dial 020 8971 7482 for more information

C. email hr@cwu.org for an application pack

D. send in your application before 4th August 2010

4. Which of the following applicants is most likely to be employed?

A. A school teacher with a master's degree.

B. A university graduate majoring in computer science.

C. A director from a research centre with a master's degree.

D. A clerk from a telecommunications company.

题型:单项选择题

在测定血样时,首先应去除蛋白质,加入水相混溶的有机溶剂可以将蛋白去除,此法的机理是什么?

题型:单项选择题

下列关于泥炭的特征描述错误的是( )

A.含水量极高
B.透水性很低
C.压缩性很高且均匀
D.承载能力很低

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