国家开放大学英语机考
A team of about 35 employees had come together for a team-building event. They were a young, bright and enthusiastic tea
答案是:B
When you think of team building, do you immediately picture your group off at a resort playing games or hanging from rop
答案是:B
- How did your meeting go yesterday? - _____________________. It was really frustrating actually.

A、Not
答案是:A
-_____________________? - I.d like to have this film developed.

A、What’s it
B、May I help you
答案是:B
- Don.t worry, Mum. The doctor said it was only a common cold. -_____________________! I.ll tell Dad there.s no
答案是:A
- Could I borrow your iPad for a few hours? -_____________________. Enjoy your time.

A、No, I am sorry
答案是:B
In competitive markets, leaders are under increased ________ to maintain a positive work culture.

A、pressure
答案是:A
If it ______up to me, I.d love for everyone to come in at noon.

A、was
B、is
C、were
答案是:C
The world largest search engine company provides a free search service ________ users can get relevant results in an ins
答案是:C
If you could have an _____ supply of any food, what would you like to have?

A、endlessness
B、endless
C、endl
答案是:B
______ managers spend most of their time in face-to-face contact with others, but they spend much of it obtaining and sh
答案是:C
She is very adaptive and soon ______ to the campus life.

A、adopted
B、adapted
C、addicted
答案是:B
To build the reservoir(水库),thousands of people have to be_______ .

A、relocated
B、repeated
C、reopened
答案是:A
An appreciated gift and the gesture of providing it will ______ your coworker.s day.

A、look up
B、light up
答案是:B
A facility enabling participants in distant locations to _____ a conference electronically.

A、take apart
B、ta
答案是:B
I like to think ______. I am always the one finding new ways to a situation or challenge.

A、inside of the box
答案是:C
Regular and concrete feedback is important when ______ with a worker who is not performing up to her potential.

答案是:B
Although we can.t compete in terms of size, I _____ believe we hold an advantage in terms of dedication to customer serv
答案是:B
The meaning of “communication” goes a lot deeper than people often think. Communication is about conceiving, sending, re
答案是:C
A strategic plan is not the end goal of the strategic planning process – it is the framework for successfully implementi
答案是:B
- Will you go on a picnic with us tomorrow? -_____________________.

A、Yes, but I’ll have English c
答案是:B
- I think we.ll have to talk later. I.ve got to go now. Great seeing you. - _____________________.

A、Nic
答案是:A
- Do you know where I can repair my motorcar? -_____________________.

A、It’s cheap to repair a mo
答案是:B
- The Auto Show in the City Stadium has been canceled? - Oh, no!_____________________!

A、What a pity
答案是:A
If there is friction between team members, examine the work processes they mutually own. Which of the following
答案是:B
Google does just that by hosting employee forums every Friday, ________ they discuss the 20 most-asked questions.
答案是:C
Leaders, Welch suggested, are _____ those who achieve results _____ those who share the values of the company.

A
答案是:A
I have been very lucky to have had ______ managers during my career so far.

A、terrific
B、terrible
C、terrif
答案是:A
Redundancy happens when employees need to _____ their workforce. And as a result, someone gets dismissed from work.
答案是:C
Ineffective communication can be ______.

A、disastrous
B、damaged
C、destroyed
答案是:A
Provide training in systematic methods so the team ______ its energy ______ the project.

A、expend…to
B、expend
答案是:C
Some employees are putting up resistance for fear of a reduction in benefits or being _____.

A、laid aside
B
答案是:B
Linda walked at the head, ________ by her colleagues.

A、followed
B、following
C、to follow
答案是:A
The most important thing is to clarify _____ you want to say.

A、that
B、what
C、which
答案是:B
__________ he was exhausted, he kept on working.

A、If
B、Although
C、Even if
答案是:B
Each employee, __________ his/her spot on the totem pole, has an influence on how Google performs.

A、regardless
答案是:A
A team of about 35 employees had come together for a team-building event. They were a young, bright and enthusiastic tea
答案是:B
It.s important for a CEO to be passionate and enthusiastic, but there.s a line of professionalism that must always be ma
答案是:B
- Could I borrow your iPad for a few hours? -_____________________. Enjoy your time.

A、No, I am sorry
B、Sure
答案是:B
- Don.t worry, Mum. The doctor said it was only a common cold. -_____________________! I.ll tell Dad there.s nothing ser
答案是:A
- I think we.ll have to talk later. I.ve got to go now. Great seeing you. - _____________________.

A、Nice meeti
答案是:A
- You have to believe in yourself. No one else will, if you don.t. - _____________________. Confidence is really importa
答案是:C
- Scott, I.d like to have your opinions about my written report. - _____________________.But I have one suggestion.
答案是:C
It.s about my new role as project coordinator that I.m ______.

A、taking off
B、taking on
C、taking away
答案是:B
The responsibilities in handbook ______ that managers have to be concerned with efficiency and effectiveness in the work
答案是:B
I have no idea ______ you mean.

A、what
B、that
C、how
答案是:A
Men and women in the team are interested in different things, we should avoid ________ them something they don.t want. <
答案是:B
________ foster a creative culture, it is important to find the right employees during the recruitment process and bring
答案是:C
Their economy is export ______.

A、oriented
B、orientating
C、orientation
答案是:A
Please ______ your hand if you have any question at all.

A、raise
B、rise
C、arise
答案是:A
At a rough ________, we will take another four weeks to finish this plan.

A、estimate
B、value
C、amount
答案是:A
Greater employee satisfaction ________ higher performance.

A、distributes to
B、attributes to
C、contributes
答案是:C
I think a big part of it is ______ we know how to have fun on the job.

A、that
B、which
C、why
答案是:A
The demands and requirements placed on the CEO of Sony are different from ______ on the manager of your local Wendy.s re
答案是:B
The leader ______ at creating opportunities to provide rewards, recognition and thanks to his or her staff.

A、e
答案是:C
All the _____ guests are seated in the front row.

A、distinguishing
B、extinguishing
C、distinguished
答案是:C
The meaning of “communication” goes a lot deeper than people often think. Communication is about conceiving, sending, re
答案是:C
Performance Management and Performance Appraisal Performance management aims to acknowledge employee achievements, suppo
答案是:A
- I have at least half an hour exercise in speaking English every day. - Terrific! _____________________!
答案是:B
- How was your job interview last Monday? - _____________________. She seemed interested in my working experienc
答案是:B
- Over-the-top? You mean... -_____________________.

A、Well, sometimes your co-workers feel that you are
答案是:A
Team members are ______ as unique people with irreplaceable experiences, points of view, and knowledge to contribute.
答案是:B
We need ________ communication skills: listen carefully, think before you speak and manage conflicts diplomatically.
答案是:A
________ foster a creative culture, it is important to find the right employees during the recruitment process and bring
答案是:C
( )是安装PLC各类模板的机架,可根据实际需要选择。

A、CPU
B、导轨
C、电源
D、输入模块
答案是:B
PLC具有( )功能,能够描述继电器触点的串联、并联和串并联等各种连接。

A、逻辑运算
B、定时控制
C、计数控制
D、A/D,D/A转换
答案是:A
( )用于对PLC内部电路供电,有的还可为I/O信号提供电源。

A、CPU
B、导轨
C、电源模板
D、输入模块
答案是:C
指出下列正确的指令。( )

A、LDN M0.0
B、CTD C300,2
C、TOF T300,6
D、NOT Q0.0
答案是:A
请从下列语句表选项中选择错误的一个(   )。

A、CTD C2,2
B、NOT Q0.0
C、TOF T35,6
D、= M0.0
答案是:B
集散控制系统由单回路仪表控制系统发展起来,主要侧重于回路调节功能。( )

A、√
B、×
答案是:A
电气隔离是在微处理器与I/O回路之间采用的防干扰措施。( )

A、√
B、×
答案是:A
全局数据(GD)通信方式以MPI分支网为基础,是为循环的传送少量数据而设计的。( )

A、√
B、×
答案是:A
PLC的计数器是( )。

A、硬件实现的计数继电器
B、一种输入模块
C、一种定时时钟继电器
D、软件实现的计数单元
答案是:D
PLC的语句指令中,( )定义要执行的功能,即告诉CPU该做什么。

A、标识符
B、参数
C、操作码
D、操作数
答案是:C
PLC工作过程中,( )是按照顺序对程序进行扫描,并从输入映像区和输出映像区中获得所需数据进行运算、处理,再将程序执行的结果写入寄存执行结果的输出映像区中保存。

A、输入采样阶段
B、程序执行阶段
C、网络通信
答案是:B
( )将微处理器控制的电平信号转换为控制设备所需的电压或电流信号。

A、输出模板
B、导轨
C、电源模板
D、输入模板
答案是:A
根据I/O点数分类,I/O点数为128的PLC属于( )。

A、大型PLC
B、中型PLC
C、小型PLC
D、微型PLC
答案是:C
( )将输入端不同电压或电流信号转换成微处理器所能接收的电平信号。

A、CPU
B、导轨
C、电源模板
D、输入模板
答案是:D
按照( )来分类,PLC可分为低档PLC,中档PLC和高档PLC。

A、I/O点数
B、结构形式
C、PLC的功能
D、PLC的体积
答案是:C
若加计数器的计数输入电路(CU)由断开变为接通,同时复位输入电路(R)( ),计数器的当前值加1。当前值大于等于设定值(PV)时,其常开触点( ),常闭触点( )。

A、断开、接通、断开
B、断开、断开、接通
答案是:A
通电延时定时器(TON)的输入(IN)电路( )时开始定时,当前值大于等于设定值时,其定时器位变为1状态,其常开触点( ),常闭触点( )。

A、断开、接通、断开
B、断开、断开、接通
C、接通、断开、断开
答案是:D
以下哪项不是S7-200 PLC定时器的定时精度?( )

A、1s
B、0.1s
C、0.01s
D、0.001s
答案是:A
输入继电器是S7-200 PLC接受外部输入的开关信号的窗口,下面对其描述不正确的是( )。

A、输入继电器的文字符号是I
B、输入继电器的触点可以无限制使用
C、输入继电器的状态仅取决于用户程序的控制
答案是:C
在S7-300中,定时器区为512Byte,最多允许使用256个定时器。 ( )

A、√
B、×
答案是:A
在S7-300中,定时器区为512Byte,最多允许使用512个定时器。( )

A、√
B、×
答案是:B
一般PLC均配置I/O电平转换,输出电平转换是用来将微处理器控制的低电平信号转换为控制设备所需的电压或电流信号。( )

A、√
B、×
答案是:A
液压传动和气压传动是以流体(液体和气体)为工作介质,依靠流体的压力能进行能量或动力传递的一种传动形式。()

A、√
B、×
答案是:A
液体的压缩系数越小,表明该液体压缩性越大。()

A、√
B、×
答案是:B
因存在摩擦,液压马达的实际转矩比理论转矩大,而液压泵的实际转矩比理论转矩小。()

A、√
B、×
答案是:B
双杆活塞液压缸又称为双作用液压缸,单杆活塞液压缸又称为单作用液压缸。()

A、√
B、×
答案是:B
电液动换向阀是由电磁阀和液动阀组合而成。()

A、√
B、×
答案是:A
溢流阀阀芯随着压力变动而移动,常态下阀口是常闭的,进、出油口不相通。()

A、√
B、×
答案是:A
液压系统各工作点的压力可通过压力表观测,选用压力表时系统的最高压力为量程的3/4比较合理。()

A、√
B、×
答案是:A
识读液压系统图的方法就是把液压系统图从头读到尾。()

A、√
B、×
答案是:B
气压系统中的方向控制回路是利用换向阀使执行元件(气缸或气马达)改变运动方向的控制回路。()

A、√
B、×
答案是:A
气压传动中的气缸属于()。

A、动力部分
B、执行部分
C、控制部分
D、辅助部分
答案是:B
径向柱塞泵的()与定子有偏心距,改变偏心距的大小,便可改变排量。

A、转子
B、柱塞
C、配油轴
D、铜套
答案是:A
外啮合齿轮泵的特点有()。

A、结构紧凑、流量调节方便
B、价格低廉、工作可靠
C、噪声小、输油量均匀
D、对油液污染不敏感、泄漏小,主要用于高压系统
答案是:B
在液压系统中,减压阀能够()。

A、用于控制油路的通断
B、使油缸运动平稳
C、保持进油口压力稳定
D、保持出油口压力稳定
答案是:D
滤油器能够滤除杂质颗粒的公称尺寸称()。

A、过滤效率
B、过滤精度
C、过滤比
D、过滤范围
答案是:B
下列基本回路中,不属于容积调速回路的是()。

A、变量泵和定量马达调速回路
B、定量泵和定量马达调速回路
C、定量泵和变量马达调速回路
D、变量泵和变量马达调速回路
答案是:B
气压传动以空气为工作介质,来源不方便,用后排气处理简单,污染环境。()

A、√
B、×
答案是:B
一台工程机械,在严寒条件下工作,应当选用粘度较低的液压油。()

A、√
B、×
答案是:A
相对压力有正、负之分,正的相对压力称为真空度;负的相对压力称为表压力()

A、√
B、×
答案是:B
液压泵的工作压力超过其额定压力时,泵会过载,从而降低液压泵的使用寿命。()

A、√
B、×
答案是:A
双杆活塞缸两端的活塞杆直径通常是相等的,因此,活塞两个方向的推力和运动速度相等,适用于要求往复运动速度和输出力相同的工况。()

A、√
B、×
答案是:A
液控单向阀的控制口通液压油时,液压油可以双向流动。()

A、√
B、×
答案是:A
溢流阀阀芯随着压力变动而移动,常态下阀口是常闭的,进、出油口不相通。()

A、√
B、×
答案是:A
液压系统中,采用密封的主要目的是为了防止灰尘的侵入。()

A、√
B、×
答案是:B
液压系统中的压力继电器属于()。

A、动力部分
B、执行部分
C、控制部分
D、辅助部分
答案是:C
双作用叶片泵()。

A、可以变量
B、对油液污染不敏感
C、不能变量
D、噪音高
答案是:C
对行程较长的机床,考虑到缸体的孔加工困难,所以采用()液压缸。

A、单杆活塞式
B、双杆活塞式
C、柱塞式
D、摆动式
答案是:C
电液动换向阀用于控制油液的()。

A、流量
B、压力
C、方向
D、温度
答案是:C
调速阀是由()组合而成的。

A、稳压溢流阀与节流阀串联
B、节流阀与定压差式减压阀并联
C、稳压溢流阀与节流阀并联
D、节流阀与定压差式减压阀串联
答案是:D
液压机床中往往采用快速回路,它的主要目的是(),提高系统的工作效率。

A、加快工作机构工进时的速度
B、加快工作机构空载时的速度
C、加快工作机构加工时的速度
D、提高系统油压力
答案是:B
以下选项中为流量控制阀的是()。

A、减压阀
B、单向顺序阀
C、快速排气阀
D、排气节流阀
答案是:D
气压传动以空气为工作介质,来源方便,用后排气处理简单,不污染环境。()

A、√
B、×
答案是:A
一台工程机械,在严寒条件下工作,应当选用粘度较高的液压油。()

A、√
B、×
答案是:B
真空度是以大气压力为基准来测量的压力。()

A、√
B、×
答案是:A
因存在摩擦,液压马达的实际转矩比理论转矩小,而液压泵的实际转矩比理论转矩大。()

A、√
B、×
答案是:A
目前为: 3/4 页  首页   上页  下页 尾页