【单选题】
It was well known that Thomas Edison _______ the electric lamp.
A. discovered
B. invented
C. found
D. developed
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相关试题
【单选题】
She wonders ____ will happen to her private life in the future.
A. that
B. it
C. this
D. what
【单选题】
The higher the temperature, _____ the liquid evaporates.
A. the faster
B. the more fast
C. the slower
D. the more slower
【单选题】
Australia is one of the few countries ______ people drive on the left of the road.
A. which
B. that
C. where
D. on which
【单选题】
Sunday is the day ____ people usually don't go to work.
A. when
B. which
C. in which
D. that
【单选题】
____ you know, David has been well lately.
A. Which
B. As
C. What
D. When
【单选题】
The harder you study, _____ you will learn.
A. much
B. many
C. the more
D. much more
【单选题】
They got there an hour _____ than the others.
A. early
B. much early
C. more early
D. earlier
【单选题】
The grey building is the place where the workers live, and the white building is the place where the spare parts ____ .
A. are producing
B. are produced
C. produced
D. being produced
【单选题】
Once environmental damage ______, it takes many years for the system to recover.
A. is to do
B. does
C. had done
D. is done
【单选题】
We worked hard and completed the task ___.
A. in the time
B. on the time
C. ahead of time
D. before time
【单选题】
I didn't expect you to turn _____ at the meeting yesterday.
A. up
B. to
C. out
D. over
【单选题】
I like the teacher _______ classes are very interesting and creative.
A. which
B. who
C. whose
D. what
【单选题】
When Lily came home at 5 p. m. yesterday, her mother ______ dinner in the kitchen.
A. cooked
B. was cooking
C. cooks
D. has cooked
【单选题】
I don’t know the park, but it's _____ to be quite beautiful.
A. said
B. told
C. spoken
D. talked
【单选题】
Mike is better than Peter ____. swimming.
【单选题】
The young lady coming over to us ______ our English teacher; the way she walks tells us that!
A. must be
B. can be
C. would be
D. could be
【单选题】
Eggs, though rich in nourishments, have ______ of fat.
A. a large number
B. the large number
C. a large amount
D. the large amount
【单选题】
Neither John ______his father was able to wake up early enough to catch the morning train.
A. nor
B. or
C. but
D. and
【单选题】
Jane's dress is similar in design ______ her sister's.
A. like
B. with
C. to
D. as
【单选题】
His salary as a driver is much higher than ________.
A. a porter
B. is a porter
C. as a porter
D. that of a porter
【单选题】
_____ these honours he received a sum of money.
A. Except
B. But
C. Besides
D. Outside
【单选题】
Would you let ____ to the park with my classmate, Mum?
A. me go
B. me going
C. I go
D. I going
【单选题】
I have been looking forward to_____ from my parents.
A. hear
B. being heard
C. be heard
D. hearing
【单选题】
The manager will not _____ us to use his car.
A. have
B. let
C. agree
D. allow
【单选题】
_____ her and then try to copy what she does.
A. Mind
B. See
C. Stare at
D. Watch
【单选题】
Will you ___ me a favor, please?
A. do
B. make
C. bring
D. give
【单选题】
It's bad _____ for you to smoke in the public places where smoking is not allowed.
A. behavior
B. action
C. manner
D. movement
【单选题】
The computer system ____ suddenly while he was searching for information on the Internet.
A. broke down
B. broke out
C. broke up
D. broke in
【单选题】
If she wants to keep slim, she must make a ___ in her diet
A. change
B. turn
C. run
D. go
【单选题】
______ the War of Independence, the United States was an English colony.
A.
B. efore B. At
C. In
D. Between
【单选题】
A police officer claimed he had attempted to ____ paying his fare.
A. avoid
B. reject
C. refuse
D. neglect
【单选题】
While I was in the university, I learned taking photos, ______ is very useful now for me.
A. it
B. which
C. that
D. what
【单选题】
He is not seriously ill, but only a ____ headache.
A. obvious
B. delicate
C. slight
D. temporary
【单选题】
On average, a successful lawyer has to talk to several ____ a day.
A. customers
B. supporters
C. guests
D. clients
【单选题】
What is the train ____ to Birmingham?
A. fee
B. tip
C. fare
D. cost
【单选题】
You shouldn't ______ your time like that, Bob, and was cold yesterdak tonight.
A. cut
B. do
C. kill
D. kick
【单选题】
Both the kids and their parents ____ English, I think. I know it from their accent.
A. is
B. been
C. are
D. was
【单选题】
You had better ___ a doctor as soon as possible.
A. seeing
B. saw
C. see
D. seen
【单选题】
He opened the letter and it contained ___.
A. an important information
B. some important informations
C. many important information
D. some important information
【单选题】
He has been writing for 3 years, but being a writer is not his ___.
A. chance
B. choice
C. change
D. character
推荐试题
【单选题】
如果中央油箱中两个燃油泵低压,不会出现什么警告()___
A. 谐音钟声
B. FAULT灯亮
C. CAUTION灯亮
D. WARNING灯亮
【单选题】
如果左内侧油箱中一个燃油泵低压,会出现什么警告()___
A. CAUTION灯亮
B. WARNING灯亮
C. 谐音钟声
D. FAULT灯亮
【单选题】
通气浮子valve的功用是()___
A. 防止燃油进入通气管
B. 保持油箱压力
C. 排放通气管的燃油
D. 停止加油
【单选题】
维护人员怎样得知通气油箱发生过释压()___
A. 白十字能看见
B. 白十字看不见
C. 通风口关闭
D. B+C
【单选题】
下面哪个部件受满油位传感器的控制()___
A. 左油箱燃油泵
B. 中央油箱燃油泵
C. 右油箱燃油泵
D. 加油valve
【单选题】
下面哪个油箱过压时,不会通过过压保护器朝机外释放()___
A. 中央油箱
B. 内侧油箱
C. 通气油箱
D. B+C
【单选题】
下面哪个油箱过压时,会通过过压保护器朝机外释放()___
A. 通气油箱
B. 内侧油箱
C. 中央油箱
D. A+B
【单选题】
下面哪种情况不会引起FRV关闭()___
A. 内侧油箱温度高
B. 外侧油箱温度高
C. 中央油箱温度高
D. IDG关断传感器变湿
【单选题】
压力加油控制面板的位置在()___
A. 左大翼前缘
B. 右大翼前缘
C. 左机腹整流罩
D. 右机腹整流罩
【单选题】
油箱出现渗漏时,应以多少时间标准来做检查()___
A. 5分钟
B. 10分钟
C. 15分钟
D. 20分钟
【单选题】
在发动机起动的前两分钟所使用的燃油来自于哪里()___
A. 内侧油箱
B. 中央油箱
C. 外侧油箱
D. A+B
【单选题】
在加油时,如果高油位传感器故障,怎样知道油箱燃油已加满()___
A. 加油自动停
B. 有警告声音
C. 红灯亮
D. 有燃油从通气油箱流出
【单选题】
在空中,如果外侧油箱燃油被使用,那么转换valve什么时候关闭()___
A. 飞机着陆时
B. 有一台发动机关车时
C. 双发关车时
D. 给油箱加油时
【单选题】
在哪个油箱中没有燃油泵()___
A. 内侧油箱
B. 外侧油箱
C. 中央油箱
D. 以上都不对
【单选题】
在正常情况下,飞机燃油使用的顺序是()___
A. 中央油箱→内侧油箱→外侧油箱
B. 中央油箱→外侧油箱→内侧油箱
C. 外侧油箱→内侧油箱→中央油箱
D. 内侧油箱→外侧油箱→中央油箱
【单选题】
在自动供油的方式下,如果中央油箱的燃油已耗尽,那么中央油箱的燃油泵()___
A. 自动停止
B. 人工关
C. 继续工作
D. 过热停止
【单选题】
中央油箱的通气是来自哪边的通气油箱()___
A. 左内侧油箱
B. 左通气油箱
C. 右内侧油箱
D. 左,右通气油箱
【单选题】
主燃油泵何时出现低压指示()___
A. 泵出口压力低
B. 泵进口压力低
C. 燃油泵电门在“ON”位
D. A+C
【单选题】
___
A. 供油压力下降时
B. 油泵未通电时
C. 无故障时按钮设在OFF位
D. 机翼油箱油量少于750KG
【单选题】
___
A. 机翼油箱中各有两个电动泵
B. 没有电动泵,因为油箱是空气增压
C. 机翼油箱中各有一个电动泵
D. 所有油箱中总共有两个电动泵
【单选题】
油箱中电容探头的作用是什么___
A. 测量油面
B. 测量油压
C. 测密度
D. 以上都不对
【单选题】
当内侧油箱油面低时___
A. 内油箱转换valve打开
B. 每侧大翼内,各一个溢流valve打开
C. 中央油箱的溢流valve打开
D. 中央油箱的溢流valve关闭
【单选题】
发动机低压valve由谁关闭___
A. 发动机防火按钮或方式选择按钮设在人工
B. 发动机防火按钮或中央油箱传输valve控制逻辑
C. 发动机防火按钮或发动机主电门
D. 以上都不对
【单选题】
各油箱中为何有2%的额外空间___
A. 用于冷却
B. 用于燃油膨胀不致溢出
C. 用于防火
D. 以上都不对
【单选题】
在人工串油时,哪些部件不需作动___
A. 待串入油箱加油valve
B. 被串油箱加油valve
C. 被串油箱燃油泵.
D. 以上都不对
【单选题】
燃油过滤器阻塞时发动机还有供油吗___
A. 有,用来自IDG冷却和外侧油箱管路的燃油
B. 没有
C. 有,绕过燃油过滤器(旁通valve)
D.
【单选题】
(供油)方式选择按钮控制:___
A. 中央和大翼油箱泵
B. 只是中央油箱泵
C. 只是大翼油箱泵
D. 以上都不对
【单选题】
APU的燃油由谁提供___
A. 油箱泵
B. APU燃油泵
C. 发动机燃油泵
D. AB都对
【单选题】
回油valve由谁控制___
A. FMGC
B. FADEC
C. FLSCU
D. FQC
【单选题】
A319有几种加油方式___
A. 自动加油
B. 人工加油
C. 重力加油
D. 以上都对
【单选题】
加油valve由谁控制___
A. FMGC
B. FADEC
C. FLSCU
D. FQC
【单选题】
自动(供油)方式下,中央油箱空了,中央油箱泵___
A. 必须人工关断
B. 自动停止供油,并且大翼油箱泵开始运转
C. 自动停止供油
D. 以上都不对
【单选题】
在电子警告显示上,机载油量指示呈琥珀色且被框起一半是什么意思?___
A. 所显示的油量不是完全可用
B. 油量显示降级
C. 油量可用
D. 以上都不对
【单选题】
给液压油箱加油是通过哪个勤务面板()___
A. 绿系统勤务面板
B. 黄系统勤务面板
C. 兰系统勤务面板
D. 以上都不对
【单选题】
液压系统主要用于飞机的哪些系统()___
A. 起落架
B. 发动机反推
C. 飞行控制
D. 以上都对
【单选题】
PTU电门“FAULT”灯亮,下面哪种情况出现()___
A. 油箱油量低
B. 油箱压力低
C. 回油温度高
D. 以上都对
【单选题】
PTU何时工作()___
A. 当“绿”与“黄”系统压力相差500psi以上时
B. 当货舱门操作时
C. 用电动泵打泵用于勤务
D. A+C
【单选题】
PTU在什么条件下被抑制()___
A. 第一台发动机起动时
B. 货舱门操作时
C. 只有一个系统低压
D. A+B
【单选题】
当货舱门操作时,哪个系统的渗漏计量valve会自动关闭()___
A. 绿系统
B. 兰系统
C. 黄系统
D. 以上都不对
【单选题】
发动机驱动泵的位置在()。___
A. 液压舱
B. 主起落架舱
C. 前起落架舱
D. 附件齿轮箱