【单选题】
下面属于TCP/IP协议族中网络互联层协议的是___。
A. IGMP、UDP、IP
B. IP、DNS、ICMP
C. ICMP、ARP、IP
D. FTP、IGMP、SMTP
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相关试题
【单选题】
协议是______之间进行通信的规则或约定。___
A. 同一结点上下层
B. 不同结点
C. 相邻实体
D. 不同结点对等实体
【单选题】
Having practiced so many times, I feel very ___ of my ability to deliver the presentation successfully.
A. satisfied
B. incredible
C. confident
D. enthusiastic
【单选题】
The university decided to increase the ___ of the lecture hall, which has only 200 seats.
A. ability
B. capacity
C. facility
D. faculty
【单选题】
Smart phones – with cameras and color screens – can ___ images and data using wireless network technology.
A. evolve
B. depart
C. transmit
D. assure
【单选题】
Don’t take someone you get to know from the Internet to your house no matter how ___ he sounds.
A. bold
B. genuine
C. flexible
D. available
【单选题】
This kind of exercise will ___ your creativity, renew your energy, and unlock your potential.
A. bind
B. yield
C. embrace
D. stimulate
【单选题】
I’ll be happy to help you, ___ you won’t take up too much of my time.
A. as well as
B. as long as
C. as far as
D. as soon as
【单选题】
We teachers do not consider it wise to ___ our students with all sorts of exams, tests and quizzes.
A. load
B. annoy
C. sample
D. explore
【单选题】
He makes his students ___ knowledge through various kinds of interesting activities.
A. study
B. learn
C. achieve
D. acquire
【单选题】
For years, scientists have debated the ___ dangers of building another nuclear plant after the terrible accident.
A. available
B. potential
C. fascinating
D. genuine
【单选题】
It was a worthwhile attempt ___ it failed to achieve its purpose that we had hoped for.
A. in the end
B. now that
C. all at once
D. even though
【单选题】
Travel in space can be very exciting; ___, it can also be boring and lonely at times.
A. so
B. however
C. thus
D. therefore
【单选题】
Politicians should not ___ in business affairs that might affect their political judgment.
A. engage
B. embrace
C. depart
D. treasure
【单选题】
I wish to ___ a master’s degree in electric engineering after I graduate from college.
A. pledge
B. explore
C. pursue
D. approach
【单选题】
There is no greater importance ___ cultivating independence in children.
A. in
B. than
C. of
D. with
【单选题】
He has made it very clear ___ we should observe the new rules.
A. what
B. which
C. those
D. that
【单选题】
It was when I read his letter ___ I realized he had given me huge help.
A. that
B. then
C. before
D. after
【单选题】
Don’t worry too much, Jane. Your son ___ home already. Let’s go back and check it out.
A. returned
B. will return
C. has returned
D. may have returned
【单选题】
I believe friendship is an essential element of making a healthy, ___ life.
A. flexible
B. rewarding
C. wealthy
D. inquisitive
【单选题】
___ they have written about the behaviors of animals is hardly anything new.
A. That
B. This
C. What
D. Which
【单选题】
No other drugs are as good as this one; it must have been based on a(n) ___ formula (配方).
A. enormous
B. stimulating
C. unique
D. overwhelming
【单选题】
Mothers tend to be too ___ toward their children. They should let them see more of the worl D.
A. hopeful
B. protective
C. modest
D. encouraging
【单选题】
The investigation ___ evidence of a large-scale illegal trade in wild birds.
A. uncovered
B. outweighed
C. overwhelmed
D. evolved
【单选题】
Poor Laura! I feel so sorry for her. When she fell, she hurt her arm and, ___, broke her glasses.
A. in advance
B. in addition
C. over time
D. on the other hand
【单选题】
Showing some sense of humor can be a(n) ___ way to deal with some stressful situations.
A. genuine
B. available
C. effective
D. favorite
【单选题】
It will be worth the efforts even if you fail; the rewards you ___ will be great.
A. reap
B. boast
C. assure
D. cultivate
【单选题】
He suggested transporting the supplies by air. But it is absolutely ___, for it will cost too much.
A. unusual
B. uncertain
C. impractical
D. impressive
【单选题】
The newspaper didn’t mention the ___ of the damage caused by the fire.
A. range
B. level
C. extent
D. quantity
【单选题】
Do you ___ her novels as serious literature or as mere entertainment?
A. classify
B. notify
C. simplify
D. justify
【单选题】
He doesn’t ___ of buying a house this year because the bank has refused to lend him any money.
A. afford
B. make the most
C. run out
D. stand a chance
【单选题】
If you don’t ___ cooking today, we can go out to eat at the new restaurant.
A. would like
B. go on with
C. feel like
D. figure out、
【单选题】
Bullying (恃强欺弱) can ___ a climate of fear and anxiety in school, and prevent students from focusing on their schoolwork.
A. keep back
B. give rise to
C. feel like
D. make use of
【单选题】
Science can now ___ many things which were thought to be mysterious by ancient people.
A. care for
B. lay out
C. account for
D. set up
【单选题】
The school has ___ many after-class activity groups for the pupils to make their spare time more colorful.
A. set up
B. set off
C. set out
D. set down
【单选题】
When he was a small kid, he ___ from his peers because he could read fast and remember whatever he rea D.
A. showed off
B. worked out
C. stood out
D. straightened up
【单选题】
The fall in the number of deaths from heart disease is generally ___ improvements in diet.
A. put up with
B. attributed to
C. added to
D. replaced with
【单选题】
We can be partners for now, but ultimately you have to ___ to develop a new software for our project.
A. keep up
B. fire off
C. make sense
D. take the lead
【单选题】
Emotional Intelligence (情商) could be of practical use in many ___ such as how companies decide which job applicant to hire, how parents should raise their children, how schools should teach the students, and so on.
A. aspects
B. disciplines
C. structures
D. opportunities
【单选题】
The teacher should praise students for their correct answers and also suggest ___ possibilities.
A. unlimited
B. unique
C. alternative
D. essential
【单选题】
In some classrooms, desks are arranged in a U-shape, so the teacher can ___ easily with the students.
A. interrupt
B. interact
C. interpret
D. interview
推荐试题
【单选题】
哪个传感器用于襟翼缝翼位置的ECAM显示?___
A. A.APPU
B. B.FPPU
C. C.IPPU
D. D.LVDT
【单选题】
哪几套液压系统作动方向舵?___
A. A.绿，蓝，红
B. B.绿,蓝
C. C.绿,黄
D. D.绿,蓝,黄
【单选题】
哪些飞行操纵面可机械操纵?___
A. A.升降舵和THS(水平安定面)
B. B.副翼和方向舵
C. C.方向舵与THS
D. D.方向舵与升降舵
【单选题】
哪些计算机直接接受侧杆指令?___
A. A.仅ELAC
B. B.仅SEC
C. C.FAC
D. D.ELAC和SEC
【单选题】
哪些扰流板起横滚协调作用?___
A. A.所有
B. B.2,3,4
C. C.1,2,3,4
D. D.2,3,4,5
【单选题】
扰流板在地面怎样人工打起?___
A. A.液压系统释压,使用维护开锁装置
B. B.按压SEC电门
C. C.使用维护开锁装置,并按压SEC电门
D. D.保持液压并使用维护开锁装置
【单选题】
扰流板在飞机接地时自动放出的条件可以是：___
A. A.SPEEDBRAKE手柄预位,油门杆在慢车或反推位
B. B.SPEEDBRAKE手柄不预位,油门在慢车位
C. C.只要油门在反推位
D. D.只要SPEEDBRAKE手柄预位
【单选题】
如果绿系统故障,横滚由什么完成:___
A. A.副翼和扰流板2,3,4,5
B. B.副翼和扰流2,3,4
C. C.扰流板2,3,4
D. D.扰流板2,3,4,5
【单选题】
升降舵和水平安定面正常都由ELAC2控制,如果ELAC2故障,将发生什么?___
A. A.俯仰控制自动转换到ELAC1
B. B.俯仰控制失效
C. C.俯仰控制自动转换到SEC1或SEC2
D. D.俯仰控制只能人工机械控制
【单选题】
自动驾驶接通，以下不能脱开自动驾驶的是哪一项?___
A. A.侧杆上接管按钮
B. B.THS手轮
C. C.方向舵脚蹬
D. D.方向舵配平旋钮
【单选题】
飞行操纵系统使用哪几个ECAM页面?___
A. A.E/W页，F/CTL页,DOOR页
B. B.E/W页，F/CTL页，WHEEL页
C. C.F/CTL页，DOOR页，HYD页
D. D.F/CTL页，WHEEL页，HYD页
【单选题】
下面什么部件机械互连?___
A. A.两个侧杆
B. B.两个THS手轮
C. C.两边方向舵脚蹬
D. D.B和C都对
【单选题】
操纵升降舵可使飞机绕什么轴运动？___
A. A.立轴
B. B.横轴
C. C.纵轴
D. D.横滚轴
【单选题】
升降舵和水平安定面正常由ELAC2控制,当ELAC2故障时:___
A. A.自动转换到ELAC1.
B. B.自动转换到SEC1
C. C.自动转换到SEC2
D. D.俯仰控制失效.
【单选题】
升降舵伺服控制作动器有哪几种工作方式?___
A. A.主动,随动
B. B.主动，定中
C. C.主动,随动,人工
D. D.主动,随动,定中
【单选题】
副翼伺服控制作动器有哪几种工作方式?___
A. A.主动,随动
B. B.主动，定中
C. C.主动,随动,人工
D. D.主动,随动,定中
【单选题】
扰流板伺服控制作动器有哪几种工作方式?___
A. A.主动,随动,定中，人工
B. B.主动,人工，锁定，偏置
C. C.主动,随动,人工，锁定
D. D.主动,随动,定中，偏置
【单选题】
什么时候飞行操纵采用机械备份?___
A. A.电源全失效或飞行控制计算机全失效
B. B.绿系统失效
C. C.传感器失效
D. D.直接法则工作时
【单选题】
水平安定面配平马达有3部,其中1部失效则:___
A. A.电动配平失效
B. B.电动配平半速
C. C.电动配平不受影响
D. D.需人工转换到另一部马达
【单选题】
下列哪些计算机直接相连?___
A. A.FWC与SEC
B. B.ELAC与CFDIU
C. C.ELAC与SEC
D. D.FAC与FCDC
【单选题】
下列什么操纵面可机械控制?___
A. A.升降舵与方向舵
B. B.副翼和THS
C. C.方向舵和THS
D. D.扰流板
【单选题】
下列说法正确的是:___
A. A.空中用于减速作用的扰流板是2,3,4,5号
B. B.由于采用电传操纵,A320取消了所有钢索
C. C.扰流板的减速功能优先于横滚功能
D. D.在空中,当飞机速度大于210节时,襟缝翼形态会由1+F变为1
【单选题】
一部襟翼PCU马达失效对系统有何影响?___
A. A.无影响
B. B.系统被锁定,不能运动
C. C.襟翼以半速运动
D. D.另一部PCU马达完全替代工作
【单选题】
LAF(减载功能)由哪些操纵面实现?___
A. A.所有液压用户
B. B.副翼和两块扰流板
C. C.襟/缝翼
D. D.升降舵
【单选题】
有关WTB正确的是?___
A. A.襟翼被WTB锁住,缝翼也不能工作.
B. B.内外襟翼脱开,WTB不工作.
C. C.液压丧失,WTB工作.
D. D.APPU与FPPU信号不一致时,WTB不工作.
【单选题】
怎样抑制另一侧侧杆的输出?___
A. A.使用更大的操纵力
B. B.按压接管按钮
C. C.机长一侧一直优先
D. D.副驾驶有优先权
【单选题】
直接法则有什么保护?___
A. A.只有失速保护
B. B.只有高速保护
C. C.只有迎角保护
D. D.无保护
【单选题】
飞行控制计算机包括：___
A. A两台ELAC，两台SEC，三台FAC
B. B两台ELAC，三台SEC，两台FAC
C. C三台ELAC，两台SEC，两台FAC
D. D三台ELAC，三台SEC，两台FAC
【单选题】
哪些操纵面可用于减小升力？___
A. A所有扰流板
B. B扰流板1到3
C. C扰流板1到4
D. D襟缝翼
【单选题】
如果ELAC1和2故障：___
A. A升降舵和俯仰配平不受影响
B. B俯仰操纵由FAC提供
C. C只能通过配平手轮实现俯仰操纵
D. D升降舵和俯仰配平由SEC1和2控制
【单选题】
如果FAC1和2故障：___
A. A脚蹬总是能控制方向舵
B. B方向舵操纵失效
C. C方向舵操纵由SEC3提供
D. D副翼处于随动模式
【单选题】
升降舵，副翼，扰流板是：___
A. A液压驱动，机械操纵
B. B电气驱动，液压操纵
C. C液压驱动，电气操纵
D. D电气驱动，机械操纵
【单选题】
偏航阻尼和方向舵配平是电动控制的：___
【单选题】
下面哪项叙述正确：___
A. A俯仰控制由方向舵完成
B. B飞行减速功能由扰流板1，2，3完成
C. C横滚控制由副翼和扰流板4和5完成
D. D地面减速板板功能由所有扰流板完成
【单选题】
升降舵伺服作动筒有多少个控制方式？___
【单选题】
过载保护的限制值是多少？___
A. A形态0或1时－1g至+2.5g
B. B襟缝翼放出时0至+2g
C. C－1g至+2g
D. DA和B
【单选题】
通常由哪个ELAC控制升降舵和安定面：___
A. AELAC1
B. BELAC2
C. CELAC3
D. D一个也不
【单选题】
通常由哪个计算机控制副翼：___
A. AELAC1
B. BELAC2
C. CSEC1
D. DSEC3
【单选题】
可配平的水平安定面何时不能操作？___
A. A黄和绿液压系统都故障后
B. B总是可以用人工手轮control
C. C蓝液压系统故障后
D. DFAC1和2失效后
【单选题】
共有几个液压马达可驱动安定面的蜗杆？___
