【单选题】
The purpose of doing the experiment is _________.___
A. to train dogs for their owners
B. to help dogs find companion
C. to help people choose their pet dogs
D. to help people judge the mood of dogs
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答案
D
解析
暂无解析
相关试题
【单选题】
The underlined word "they" in the last sentence refers to __________.___
A. the trainers
B. the systems
C. the researchers
D. the dogs
【单选题】
The new law passed in Rome will ________.___
A. help improve fishing environment
B. stop people from catching goldfish
C. guarantee better conditions for goldfish
D. discourage keeping goldfish at home
【单选题】
People in Rome believe that the civilization of a city can be judged by _________.___
A. awareness of animal protection
B. exchanges with other cities
C. protection of ancient ruins
D. recognition of animal lovers
【单选题】
The underlined word "compassion" in Para 2 is the closest in meaning to __________.___
A. support
B. pity
C. help
D. love
【单选题】
People may break the law in Turin if they ________.___
A. keep their dogs or cats in cars
B. shut their dogs home all day long
C. raise their cats near ancient ruins
D. feed homeless animals in car parks
【单选题】
We can infer from the passage that _________.___
A. the owners can leave their dogs in hot cars
B. the cat only lives in modern life
C. the new law can prevent cruelty to animals
D. the new law gives recognition to the
people who feed homeless cat
【单选题】
If a person finds getting up early a problem, most probably ________.___
A. he is a lazy person
B. he refuses to follow his own energy cycle
C. he is not sure when his energy is low
D. he is at his peak in the afternoon or evening
【单选题】
Which of the following may lead to family quarrels according to the passage?___
A. Unawareness of energy cycles.
B. Familiar monologues.
C. A change in a family member's energy cycle.
D. Attempts to control the energy cycle of other family members.
【单选题】
If one wants to work efficiently at his low point in the morning, he should __________.___
A. change his energy cycle
B. overcome his laziness
C. get up earlier than usual
D. go to bed earlier
【单选题】
You are advised to rise with a yawn and stretch because it will __________.___
A. help to keep your energy for the day's work
B. help you to control your temper early in the day
C. enable you to concentrate on your routine work
D. keep your energy cycle under control all day
【单选题】
Which of the following statements is NOT true?___
A. Getting off to work with a minimum effort helps save one's energy.
B. Dr. Kletman explains why people reach their peaks at different hours of day.
C. Habit helps a person adapt to his own energy cycle.
D. Children have energy cycles, too.
【单选题】
An effective way to prevent the burnout of young athletes is __________.___
A. to increase their sense of success
B. to make sports less competitive
C. to reduce their mental stress
D. to make sports more challenging
【单选题】
According to the passage sport is positive for young people in that __________.___
A. it can help them learn more about society
B. it enables them to find flaws in themselves
C. it teaches them how to set realistic goals for themselves
D. it can provide them with valuable experiences
【单选题】
Many coaches and parents are in the habit of criticizing young athletes __________.___
A. without realizing criticism may destroy their self-confidence
B. in order to make them remember life's lessons
C. believing that criticism is beneficial for their early development
D. so as to put more pressure on them
【单选题】
According to the passage parents and coaches should __________.___
A. help children to win every game
B. pay more attention to letting children enjoy sports
C. train children to cope with stress
D. enable children to understand the positive aspect of sports
【单选题】
The author's purpose in writing the passage is _________.___
A. to persuade young children not to worry about criticism
B. to stress the importance of positive reinforcement to children
C. to discuss the skill of combining criticism with encouragement
D. to teach young athletes how to avoid burnout
【单选题】
As pointed out at the beginning of the passage, people used to think that air pollution _______.___
A. cause widespread damage in the countryside
B. affected the entire eastern half of the United States
C. had damaged effect on health
D. existed merely in urban and industries areas
【单选题】
As to the greenhouse effect, the author ________.___
A. share the same view with the scientist
B. is uncertain of its occurrence
C. rejects it as being ungrounded
D. thinks that it will destroy the world soon
【单选题】
The underlined word "offset" in the second paragraph could be replaced by _________.___
A. slip into
B. make up for
C. set up
D. catch up with
【单选题】
It can be concluded that ____________.___
A. raising the world's temperature only a few degrees would not do much harm to life on earth
B. lowering the world's temperature merely a few degrees would lead major farming areas to disaster
C. almost no temperature variations have occurred over the past decade
D. the world's temperature will remain constant in the years to come
【单选题】
This passage is primarily about __________.___
A. the greenhouse effect
B. the burning of fossil fuels
C. the potential effect of air pollution
D. the likelihood of a new ice age
【单选题】
What is the major function of paragraph 1?___
A. To arouse the reader's concern.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To state the primary uses of TV.
【单选题】
Television, as a source of entertainment, is ________.___
A. not very convenient
B. very expensive
C. quite dangerous
D. relatively cheap
【单选题】
Why are some people against TV?___
A. Because TV programs are not interesting.
B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
B. it is very cheap
C. it enables us to have a rest
D. it controls our lives
【单选题】
According to the passage, whether TV is good or not depends on ___________.___
A. its quality
B. people's attitude towards it
C. how we use it
D. when we use it
【单选题】
What regulation was issued by New York State concerning beverage containers?___
A. A fee should be charged on used containers for recycling.
B. Throwaways should be collected by the state for recycling.
C. Consumers had to pay for beverage containers and could get their money back on returning them.
D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
【单选题】
The returned plastic bottles in New York used to _____________.___
A. be turned into raw materials
B. be separated from other rubbish
C. have a second-life value
D. end up somewhere underground
【单选题】
The key problem in dealing with returned plastic beverage containers is ______________.___
A. how to reduce their recycling costs
B. to sell them at a profitable price
C. how to turn them into useful things
D. to lower the prices for used materials
【单选题】
Recycling has become the first choice for the disposal of rubbish because ______________.___
A. recycling causes little pollution
B. other methods are more expensive
C. recycling has great appeal for the jobless
D. local governments find it easy to manage
【单选题】
It can be concluded from the passage that ____________.___
A. recycling is to be recommended both economically and environmentally
B. local governments in the U.S. can expect big profits from recycling
C. rubbish is a potential remedy for the shortage of raw materials
D. landfills will still be widely used for waste disposal
【单选题】
The author chose to study engineering at a small liberal-arts university because he ________.___
A. intended to be a sensible student with noble ideals
B. wanted to be an example of practicality and rationality
C. intended to be a combination of engineer and humanist
D. wanted to coordinate engineering with liberal-arts courses in college
【单选题】
According to the author, by interacting with people who study liberal arts, engineering students can __________.___
A. broaden their horizons
B. receive guidance in their careers
C. become noble idealists
D. balance engineering and the liberal arts
【单选题】
In the eyes of the author, a successful engineering student is expected ______________.___
A. to be imaginative with a value system to guide him
B. to be a technical genius with a wide vision
C. to have an excellent academic record
D. to be wise and mature
【单选题】
The author's experience shows that he was ________.___
A. creative
B. ambitious
C. irrational
D. unrealistic
【单选题】
The underlined word "they" in "... together they threaten to confuse." (Para.5) refers to ____________.___
A. practicality and rationality
B. engineering and the liberal arts
C. reality and noble ideals
D. flexibility and a value system
【单选题】
It can be learned from the passage that the Ouchidas' house __________.___
A. failed to meet energy conservation standards
B. was designed and constructed in a scientific way
C. is well worth the money spent on its construction
D. is almost faultless from the point of energy conservation
【单选题】
What made the Ouchidas' new house a horrible dream?___
A. Lack of fresh air.
B. Gas leakage in the kitchen.
C. The newly painted walls.
D. Poor quality of building materials.
【单选题】
The underlined word "accentuate" (Para. 3) most probably means "________".___
A. worsen
B. accelerate
C. relieve
D. improve
【单选题】
Why were cracks in old houses not a big concern?___
A. Because environmental protection was given top priority.
B. Because indoor cleanness was not emphasized.
C. Because they were technically unavoidable.
D. Because energy used to be inexpensive.
推荐试题
【单选题】
什么时候发动机灭火剂电门(AGENT电门)可以起作用:___
A. 相应的DISCH灯亮时
B. 发动机火警按钮灯亮时
C. 发动机火警按钮松出后
D. 相应的SQUIB灯熄灭时
【单选题】
关于火警探测,下列哪种情况会给出火警信号?___
A. 环路A故障,环路B火警
B. 环路A火警,环路B火警
C. 环路A故障,环路B在5秒内故障
D. 以上的都给出火警信号
【单选题】
以下做法不正确的是:___
A. 用摇表(兆欧表)测量灭火系统导线的绝缘
B. 用三用表测量火警探测线路的电阻
C. 用三用表测量灭火瓶的压力电门状态是接通还是断开
D. 用三用表测量灭火瓶爆炸帽的电阻
【单选题】
SDCU是怎样连续的监控灭火系统()___
A. 通过压力电门和爆炸电路状况
B. 通过灭火瓶压力和爆炸电路状况
C. 通过灭火瓶压力和释放头状况
D. 通过压力电门和释放头状况
【单选题】
按压驾驶舱发动机火警面板上的发动机火警释放按钮后()___
A. 发动机灭火瓶被触发且灭火瓶释放对发动机进行灭火
B. 发动机灭火瓶并不会被触发释放,只是接通了灭火控制电路,只有当按压“SQUIB”按钮后才会释放发动机灭火瓶
C. 按压该按钮后火警三级警告的音响被取消
D. 以上都不对
【单选题】
当APUFIRE按钮被放出时,APU发电机会怎么样()___
A. APU发电机不向网络供电
B. APU发电机不受影响
C. APU发电机继续向网络供电
D. APU发电机仍被衔接且供电
【单选题】
当APUFIRE按钮被放出时,那个valve被关闭()___
A. 低压燃油关断valve
B. 液压防火关断valve
C. 燃油隔离valve
D. “PACK”流量控制valve
【单选题】
当ENGFIRE按钮被放出时,哪个相应的valve被关闭()___
A. 燃油交输valve和燃油回油valve
B. 低压燃油关断valve和液压防火关断valve
C. 高压燃油关断valve和低压燃油关断valve
D. 液压防火关断valve和高压燃油关断valve
【单选题】
当电子舱出现烟雾警告,将BLOWER和EXTRACT按钮置于“超控”位将导致()___
A. 鼓风机停止工作,抽风机继续工作
B. 鼓风机停止工作,抽风机停止工作
C. 鼓风机继续工作,抽风机停止工作
D. 鼓风机继续工作,抽风机继续工作
【单选题】
发动机“AGENT”按钮是什么时候被激活()___
A. 一致的“DISCH”灯亮时
B. “ENGINGFIRE”按钮亮时
C. “ENGINGFIRE”按钮被释放出时
D. 按下AGENT按钮时
【单选题】
发动机火警TEST按钮检查什么()___
A. 火警探测环路A和B,FDU指示和警告
B. AGENT1和2的SQUIB电路的连续性
C. 仅测试FDU及环路A和B
D. 以上A和B
【单选题】
发动机灭火瓶及安装位置说法正确的是()___
A. 每台发动机有一个灭火瓶,安装在发动机吊架上
B. 每台发动机有2个灭火瓶,安装在发动机吊架上
C. 两台发动机共有2个灭火瓶,安装在轮舱里
D. 每台发动机各2个灭火瓶,安装在轮舱里
【单选题】
发动机系统有几个FDU,它们是如何工作的()___
A. 1个FDU,同时监控两台发动机
B. 2个FDU,正常情况下,FDU1工作,FDU2备用
C. 2个FDU,每台发动机仅由其相应的FDU监控
D. 3个FDU,通常FDU1监控左发,FDU2监控右发,FDU3作为备用监控
【单选题】
关于厕所烟雾探测器说法正确的是()___
A. 单独作为一个环路与SDCU相连
B. 探测器直接将信号送到ECAM上
C. 作为环路中的一部分与货舱烟雾探测器相互连接
D. 与电子舱烟雾探测器构成一个环路
【单选题】
关于货舱灭火瓶,以下说法正确的是()___
A. 前货舱DISCH按钮可释放前货舱灭火瓶,后货舱DISCH按钮可释放后货舱灭火瓶
B. 前后货舱两个DISCH按钮可释放同一个灭火瓶
C. 货舱灭火瓶安装在轮舱
D. 可用发动机灭火瓶对货舱进行灭火
【单选题】
进行2发火警测试时,描述最完整的警告是()___
A. ECAM上有发动机火警显示
B. ECAM上有2发火警显示,连续的音响警告,2发SQUIB和DISCH灯亮,ENG2FIRE灯亮,发动机起动面板上FIRE灯亮,MASTERWARN灯闪亮
C. ECAM上有发动机火警显示,同时伴有音响警告
D. ECAM上有发动机火警显示,同时伴有音响警告,头顶板上也有火警显示
【单选题】
前货舱烟雾探测故障信息,何时显示在ECAM上()___
A. 仅当两个烟雾探测器都故障时
B. 当一个烟雾探测器故障,另一个工作正常时
C. 当一个烟雾探测器探测到烟雾,另一个没有探测到烟雾
D. 当两个烟雾探测器都探测到烟雾时
【单选题】
如果SDCU产生故障时,将发生什么()___
A. 卫生间烟雾探测不起作用
B. 货舱烟雾探测不起作用
C. 以上A和B以及单谐音,主警诫灯亮和ECAM信息
D. 无任何反映
【单选题】
如果探测到货舱烟雾时,将发生什么()___
A. SMOKE灯亮+连续的声音警告+MASTERWARNING+ECAM信息
B. CIDS使货舱烟雾警告
C. 仅SMOKE灯亮
D. 无警告
【单选题】
以下哪种情况,在ECAM上显示发动机火警环路A故障()___
A. 环路A探测到火警,环路B探测到故障
B. 环路A,环路B在5秒内相继故障
C. 环路A探测到火警时间>16秒,环路B工作正常
D. 环路A工作正常,环路B探测到火警时间>16秒
【单选题】
以下哪种情况在ECAM上显示发动机火警探测故障()___
A. 环路A电源故障,且环路B电源故障,间隔<5秒
B. 环路A探测到火警,环路B工作正常
C. 环路A完整性故障,环路B探测到完整性故障间隔<5秒
D. 环路A探测到火警,环路B探测到故障
【单选题】
以下那种情况会触发前货舱烟雾警告()___
A. 当前货舱两个烟雾探测器同时故障时
B. 当一个烟雾探测器探测到烟雾,另一个烟雾探测器故障时
C. 当FDU电源故障时
D. 当一个烟雾探测器探测到烟雾,另一个没有探测到烟雾
【单选题】
在飞机外接电源面板上有()___
A. APUFIRE灯,APU人工停车电门
B. 有APUFIRE灯,APU人工灭火电门
C. APU人工停车电门,APU人工灭火电门
D. APU火警测试电门,APU人工停车电门