【单选题】
Criticism and self-criticism is necessary _______ it helps us to find and correct our mistakes.
A. by that
B. at that
C. on that
D. in that
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相关试题
【单选题】
However, at times this balance in nature is ________, resulting in a number of possibly unforeseen effects.
A. troubled
B. disturbed
C. confused
D. puzzled
【单选题】
The patient’s health failed to such an
extent that he was put into _____ care.
A. tense
B. rigid
C. intensive
D. tight
【单选题】
Does everyone on earth have an equal right _________ an equal share of its resources?
A. by
B. at
C. to
D. over
【单选题】
In 1914, an apparently insignificant event in a remote part of Eastern Europe __________ Europe into a great war.
A. inserted
B. imposed
C. pitched
D. plunged
【单选题】
We had to ___________ a lot of noise when the children were at home.
A. go in for
B. hold on to
C. put up with
D. keep pace with
【单选题】
A person's calorie requirements vary ______ his life.___
A. across
B. throughout
C. over
D. within
【单选题】
Generous public funding of basic science would ________considerable benefits for the country's health, wealth and security.___
A. lead to
B. result from
C. lie in
D. settle down
【单选题】
In a time of social reform, people's state of mind tends to keep ___________ with the rapid changes of society___
A. step
B. progress
C. pace
D. touch
【单选题】
The speech which he made __________ the project has bothered me greatly.___
A. regarded
B. concerned
C. regarding
D. concerning
【单选题】
Harry was _______ by a bee when he was collecting the honey.___
A. stung
B. stuck
C. bitten
D. scratched
【单选题】
The thief tried to open the locked door but _________.___
A. in no way
B. in vain
C. without effect
D. at a loss
【单选题】
Remember that customers don't ________ about prices in that city.___
A. debate
B. consult
C. dispute
D. bargain
【单选题】
I hope that you'll be more careful in typing the letter. Don't _________ anything.___
A. lack
B. withdraw
C. omit
D. leak
【单选题】
The tomato juice left brown __________ on the front of my jacket.___
A. spot
B. point
C. track
D. trace
【单选题】
The committee is totally opposed ________ any changes being made in the plans.___
A. of
B. on
C. to
D. against
【单选题】
I'm very sorry to have _______ you with so many questions on such an occasion.___
A. interfered
B. offended
C. impressed
D. bothered
【单选题】
The price of beer _______ from 50 cents to $4 per liter during the summer season.___
A. altered
B. ranged
C. separated
D. differed
【单选题】
Their son doesn't know what to ________ at the university; he can't make up his mind about his future.___
A. take in
B. take up
C. take over
D. take after
【单选题】
Although they plant trees in this area every year, the tops of some hills are still _________.___
A. blank
B. hollow
C. vacant
D. bare
【单选题】
Being a pop star can be quite a hard life, with a lot of traveling ________ heavy schedules.
A. with regard to
B. as to
C. in relation to
D. owing to
【单选题】
Tony is very disappointed _______ the results of the exam.
A. with
B. for
C. toward
D. on
【单选题】
William Penn, the founder of Pennsylvania, _________ defended the right of every citizen to freedom of choice in religion.
A. peculiarly
B. indifferently
C. vigorously
D. inevitably
【单选题】
When people become unemployed, it is _______ which is often worse than lack of wages.___
A. laziness
B. poverty
C. idleness
D. inability
【单选题】
In previous times, then fresh meat was in short __________, pigeons were kept by many households as a source of food.
A. store
B. provision
C. reserve
D. supply
【单选题】
Those gifts of rare books that were given to us were deeply _________.___
A. appreciated
B. approved
C. appealed
D. applied
【单选题】
It is our ___________ policy that we will achieve unity through peaceful means.___
A. consistent
B. continuous
C. considerate
D. continual
【单选题】
He is __________ about his chances of winning a gold medal in the Olympics next year.___
A. optimistic
B. optional
C. outstanding
D. obvious
【单选题】
The director was critical _______________ the way we were doing the work.___
A. at
B. in
C. of
D. with
【单选题】
In a sudden _____________ of anger, the man tore up everything within reach.___
A. attack
B. burst
C. split
D. blast
【单选题】
In Britain people _____________ four million tons of potatoes every year.___
A. swallow
B. dispose
C. consume
D. exhaust
【单选题】
I'd _____________ his reputation with other farmers and business people in the community, and then make a decision about whether or not to approve a loan.___
A. take into account
B. account for
C. make up for
D. make out
【单选题】
She cooked the meat for a long time so as to make it _____________ enough to eat.___
A. mild
B. slight
C. light
D. tender
【单选题】
The computer revolution may well change society as _____________ as did the Industrial Revolution.___
A. certainly
B. insignificantly
C. fundamentally
D. comparatively
【单选题】
A lot of ants are always invading my kitchen. They are a thorough ___________.___
A. nuisance
B. trouble
C. worry
D. anxiety
【单选题】
As we can no longer wait for the delivery of our order, we have to _________ it.___
A. postpone
B. refuse
C. delay
D. cancel
【单选题】
When a fire _________ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.___
A. broke of
B. broke out
C. broke down
D. broke up
【单选题】
The destruction of these treasures was a loss for mankind that no amount of money could __________.___
A. stand up to
B. make up for
C. come up with
D. put up with
【单选题】
The student was just about to ___________ the questions, when suddenly he found the answer.___
A. arrive at
B. submit to
C. work out
D. give up
【单选题】
When there are small children around, it is necessary to put bottles of pills out of _________.___
A. reach
B. hand
C. hold
D. place
【单选题】
The _________ of blood always makes him feel sick.___
A. sight
B. view
C. look
D. form
推荐试题
【单选题】
真空系统控制器位于___
A. 后散装货舱。
B. 前货舱。
C. 电子舱。
D. 后设备舱。
【单选题】
排水口DRAIN MAST在何种状态下加温？___
A. 空中。
B. 地面。
C. 空中和地面。
D. 人工控制。
【单选题】
VSC真空系统控制器跳开关重置电门位于___
A. 驾驶舱。
B. 电子舱。
C. 散装货舱。
D. 两个后客舱门之间的天花板上。
【单选题】
该飞机采用的APU的型号为：___
A. GTCP 331-300
B. GTCP 331-350
C. GTCP 331-350
D. GTCP 331-550
【单选题】
该APU的动力部分有几级压气机___
A. 三级离心式压气机
B. 两级离心式压气机
C. 三级轴流式压气机
D. 两级轴流式压气机
【单选题】
APU主要的控制部件是：___
A. GCU
B. EEC
C. LGCIU
D. ECB
【单选题】
APU的主要功能是：___
A. 提供气源和液
B. 提供液压和电源
C. 提供气源和防冰
D. 提供电源和气源
【单选题】
ECB 位于那里？___
A. 货舱
B. 散装货舱
C. 驾驶舱
D. 电子舱
【单选题】
什么时候APU进气门打开:___
A. 当APU提供引气和电源
B. 点火开始时
C. 主电门被按压时.
D. 燃油活门打开后
【单选题】
什么时候开始点火:___
A. 7%RPM
B. ATA75%RPM
C. 95%RPM
D. 0.5
【单选题】
以下说法正确的是:___
A. APU任何高度都能供电
B. APU任何高度都能供气
C. APU供电和供气有高度限制
D. 由控制人员确定
【单选题】
APU的正常转速是___
A. 0.95
B. 1
C. 1.01
D. 1.07
【单选题】
APU的主要组件是什么？___
A. 轴动力部件，载荷压气机，附件齿轮箱。
B. 压气机，燃烧室，涡轮。
C. 电气，引气，轴动力部件。
D. 滑油部件、燃油部件、气源部件
【单选题】
APU提供的引气来自于：___
A. 压气机并通过防喘活门供给飞机气源系统
B. 负载压气机并通过进口导向叶片供给飞机气源系统
C. 压气机并通过引气活门供给飞机气源系统
D. 负载压气机并通过引气活门供给飞机气源系统
【单选题】
APU提供电源和气源的原则是什么？___
A. 电源优先
B. 气源优先
C. 根据飞机的需求确定
D. 任何时候都可同时提供电源和气源
【单选题】
APU压气机是：___
A. 轴流式
B. 离心式
C. LRU
D. 双转子
【单选题】
APU正常关车在哪里执行:___
A. APU控制面板(头顶)
B. 火警面板
C. 外电源控制面板.
D. ECB
【单选题】
APU转速显示在什么情况下会变为琥珀色？___
A. 大于100%
B. 大于105%
C. 大于107%
D. 大于110%
【单选题】
从何处可以进行APU紧急关车___
A. APU控制面板,火警面板,外电源控制面板
B. 加/抽油面板,外电源控制面板和驾驶舱
C. APU不能从飞机外部关车
D. 火警面板或外电源控制面板
【单选题】
起动APU前需要进行什么测试？___
A. APU火警测试
B. ECU测试
C. 发动机火警测试
D. 以上都是
【单选题】
起动APU之前必须检查下列哪些系统和参数？___
A. 火警和电瓶电压
B. 直流电源和交流电源的质量
C. 地面服务汇流条的电源状况
D. 进气门的位置
【单选题】
对该APU描述正确的是：___
A. 两级轴流式压气机和三级离心式涡轮
B. 三级轴流式压气机和两级离心式涡轮
C. 两级离心式压气机和三级轴流式涡轮
D. 三级离心式压气机和两级轴流式涡轮
【单选题】
在ECAM页面上的APU页上，不会显示以下哪一个参数：___
A. EGT
B. 滑油油量值
C. 引气活门位置
D. 发电机参数
【单选题】
APU可以看作是由下面哪些部分组成的：___
A. 动力部分，引气部分，电源部分
B. 引气部分，附件部分，电源部分
C. 负载压气机，电源部分，动力部分
D. 动力部分，负载压气机，附件部分
【单选题】
APU燃油系统中，主电门控制燃油关断的是哪一个部件：___
A. 燃油电磁关断活门
B. 燃油计量活门
C. 燃油分配活门
D. 燃油排放电磁活门
【单选题】
由燃油驱动的部件有：___
A. 引气活门和防喘活门
B. 引气活门和IGV作动器
C. 防喘活门和IGV作动器
D. 燃油计量活门和防喘活门
【单选题】
以下活门，是由ECB通过扭矩马达来控制的活门是___
A. 燃油关断活门
B. 燃油计量活门
C. 燃油分配活门
D. 燃油排放活门
【单选题】
APU起动时什么时候开始供油？___
A. 按压主电门时
B. 按压起动电门时
C. 转速达到7%时
D. 转速达到50%时
【单选题】
APU起动时什么时候起动机脱开？___
A. 按压主电门时
B. 按压起动电门时
C. 转速达到7%时
D. 转速达到50%时
【单选题】
APU可用指示会在什么时候出现？___
A. 转速达到7%时
B. 转速达到50%时
C. 转速达到60%时
D. 转速达到95%时
【单选题】
以下部件没有单独的滑油回油泵的是：___
A. 后集油池
B. 中集油池
C. 起动机离合器
D. 发电机
【单选题】
稀释电磁活门的作用是：___
A. 给滑油系统加水稀释滑油
B. 给滑油系统加空气进行稀释
C. 给滑油系统加入燃油尽心稀释
D. 连通滑油供油泵的进口和出口
【单选题】
APU滑油系统的警告有：___
A. 滑油温度高和滑油压力低警告
B. 滑油温度低和滑油压力高警告
C. 滑油温度高和滑油压力高警告
D. 滑油温度低和滑油压力低警告
【单选题】
防喘活门的作用是：___
A. 防止两级离心式压气机喘振
B. 防止负载压气机喘振
C. 防止飞机主发动机喘振
D. 防止APU燃烧室熄火
【单选题】
PCD1的引气用来操作的部件是：___
A. 部件冷却活门和引气活门
B. 部件冷却活门和防喘活门
C. 引气活门和防喘活门
D. 防喘活门和IGV作动器
【单选题】
PCD2的引气，用来控制的部件是：___
A. 防喘活门
B. 引气活门
C. 防喘活门
D. 燃油排放电磁活门
【单选题】
用电瓶起动APU时，对高度有什么限制？___
A. 只能在地面
B. 在20000英尺以下
C. 在25000英尺以下
D. 无高度限制
【单选题】
在APU系统页上出现“FLAPOPEN”，表示：___
A. APU进气门打开
B. 襟翼放出
C. 襟翼断开
D. 进气门打不开
【单选题】
APU正常关断时___
A. 进气门立即关闭
B. 进口导向叶片IGV停留在关车前状态
C. 引气活门停留在关车前状态，APU自动执行2分钟的冷却
D. 防喘活门逐渐趋于打开位置
