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【单选题】
The video cameras were used to catch the dogs' responses because ___________.
A. the dogs were put in the wooden boxes  and tested one at a time
B. it was easier to catch the dogs’s response changes in the tail wagging
C. they enabled the dogs’owners to know  about their dogs’; habit
D. the dogs wagged their tails in different  directions when they were in different  moods
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答案
B
解析
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相关试题
【单选题】
When there are no stimuli, a dog will ___________.___
A. wag to the right
B. no wag at all
C. wag to the left
D. wag to the left and then wag to the right
【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
【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.
推荐试题
【单选题】
单站验证测试中哪项不是空闲模式检查的内容?( )
A. 数据业务测试
B. CINR检查
C. PCI检查
D. 频率检查
【单选题】
在LTE系统中,以下哪个协议栈的速率最大( )。
A. MAC层速率
B. 物理层速率
C. PDCP层速率
D. 应用层速率
【单选题】
NB-IoT上行带宽为3.75KHz时,无线帧时长为( )。
A. 1ms
B. 4ms
C. 40ms
D. 10ms
【单选题】
除了IDLE状态外,NB-IoT引入了新的PSM状态,也就是终端关闭射频接收,进入休眠的状态,这种状态最长可以持续多长时间?( )
A. 310h
B. 620h
C. 2.92h
D. 2.56h
【单选题】
NB-IoT更长周期的定期位置更新,TAU最大可达( )。
A. 310h
B. 620h
C. 2.92h
D. 2.56h
【单选题】
NB-SIB1的资源固定映射在几号子帧?( )
A. 3
B. 4
C. 2
D. 1
【单选题】
NB-IoT上行资源的最小调度单位是什么?( )
A. PRB
B. RU
C. RE
D. RB
【单选题】
对于NR中的上行SPS,下列说法错误的是( )。
A. Configured grant Type2配置之后,还需要通过CS-RNTI PDCCH激活才能使用
B. ?Periodicity依据不同的子载波间隔取值范围不同
C. Configured grant Type1配置之后,还需要通过CS-RNTI PDCCH激活才能使用
D. 通过ConfiguredGrantConfig来配置
【单选题】
在时域上,1个SS/PBCH?Block占据几个连续的OFDM?Symbol?( )
A. 2
B. 1
C. 3
D. 4
【单选题】
Secondary Node Addition流程的说法错误的是( )。
A. Secondary Node Addition流程是由MN初始化
B. Secondary Node Addition流程至少可以添加第一个小区pscell
C. Secondary Node Addition流程不要在SN上进行随机接入
D. Secondary Node Addition流程是为增加和SN之间的连接而发起的
【单选题】
5G支持( )公里/小时高速移动。
A. 200
B. 500
C. 250
D. 350
【单选题】
5G峰值速率( ),时延( ),连接数( )/平方公里。
A. 10Gbps、1ms、10万
B. 10Gbps、10ms、100万
C. 1Gbps、10ms、100万
D. 10Gbps、1ms、100万
【单选题】
SDN核心思想是( )。
A. 自动分发
B. 自动部署
C. 转控一体
D. 转控分离
【单选题】
频域上,SS/PBCH?block由多少个连续的RB构成?( )
A. 12个
B. 10个
C. 20个
D. 24个
【单选题】
5GNR下,SPS配置使用如下那种RNTI加扰的PDCCH进行资源调度?( )
A. C-RNTI
B. RA-RANTI
C. CS-RNTI
D. SPS C-RNTI
【单选题】
以下哪种SSB必须在SS raster上?( )
A. 用于PScell接入的SSB
B. 用于测量的SSB
C. 用于NR Scell接入的SSB
D. 用于NR Pcell接入的SSB
【单选题】
CDMA手机是通过接收( )信道消息来获得长码状态.系统时间等消息的?
A. 寻呼
B. 业务
C. 同步
D. 导频
【单选题】
正常情况下,天馈系统驻波比应该在以下范围内( )。
A. 2~3
B. 0~1.5
C. 1~2
D. 1~1.5
【单选题】
室内电梯覆盖为免入电梯发生掉话一般使用 ( )直放机。
A. 微波
B. 光纤
C. 选频
D. 宽频
【单选题】
分布系统中的干放输出功率必须严格控制在标称值的工作范围。 ( )
A. 错误
B. 正确
【单选题】
以下关于电波传播的描述不正确的是( )。
A. 电磁波波长越长,绕射能力越强
B. 电磁波波长越长,传播速度越快
C. 电磁波频率越高,传播损耗越大
D. 电磁波在不同的媒质中,传播速度不同
【单选题】
某公司申请到一个C类IP地址段,但要分配给6个子公司,最大的一个子公司有26台计算机。不同的子公司必须在不同的网段,则子网掩码应该设置为( )。
A. 255.255.255.224
B. 255.255.255.0
C. 255.255.255.192
D. 255.255.255.128
【单选题】
NFV旨在采用( )的方法,将原本运行在专用中间设备(middlebox)的网络功能(如网关.防火墙)用软件的方式实现。
A. 芯片化
B. 虚拟化
C. 程序化
D. 硬件化
【单选题】
室内覆盖天线采用的极化方向为( )。
A. 双极化
B. 水平极化
C. 交叉极化
D. 垂直极化
【单选题】
OSI网络结构模型共分为7层,其中最低层是( )。
A. 应用层
B. 会话层
C. 物理层
D. 传输层
【单选题】
光纤直放站设置时,需要考虑与施主基站之间光纤的实际长度,而不是两个点的距离。 ( )
A. 错误
B. 正确
【单选题】
关于VOLTE方案,描述准确的是( )
A. 必须改造现网GSM无线网络
B. 必须部署SRVCC方案
C. 必须部署融合的3合1HLR/HSS
D. 必须需要IMS网络支持
【单选题】
半持续(SPS)网3:1时隙配比下,因SPS采用保守调度算法,MCS不得高于( )
A. 5
B. 15
C. 30
D. 25
【单选题】
以下关于SRVCC的说法正确的是?( )
A. SRVCC时延在800ms左右。
B. SRVCC发生在UE漫游到LTE覆盖的边缘地区时。
C. SRVCC MSCS可以新建,避免现网的MSC升级。
D. R9 SRVCC支持CS到LTE的语音连续性切换。
【单选题】
LTE的PLMN信息在哪条消息里广播?( )
A. SIB1
B. SIB2
C. MIB
D. SIB3
【单选题】
以下哪个参数不用于异系统小区重选控制?( )
A. ThreshXLow
B. sIntraSearch
C. ThreshXHigh
D. sNonintraSearch
【单选题】
EPC发起的寻呼消息以( )为单位下发给UE。
A. TAList
B. TA
C. RA
D. LA
【单选题】
LTE中的物理小区标识有( )个。
A. 168
B. 512
C. 500
D. 256
E. 504
【单选题】
四天线MIMO模式不适合高速场景主要因为:( )
A. 施工困难
B. 分集增益低
C. 信道估计精度不够
D. 频偏过大
【单选题】
RF优化测试以什么为主?( )
A. 投诉
B. DT测试
C. 统计话务报告
D. CQT测试
【单选题】
从信令( )里可以确定SIM卡支持eSRVCC
A. S1 UE Context Release Command
B. S1 Initial Context Setup Request
C. S1 UE Context Release Request
D. RRCConnectionReconfiguration
【单选题】
对某一个特定的UE来说,同时能有几个切换准备流程进行?( )
A. 4
B. 1
C. 3
D. 2
【单选题】
多天线分集技术与单天线系统直观相比并没有增加系统吞吐量,但是由于改善了性能指标从而可以通过( )编码率和( )重传率提高系统容量。
A. 降低,降低
B. 提高,降低
C. 降低,提高
D. 提高,提高
【单选题】
LTE在系统部署上支持RS序列组跳变和RS序列组规划两种模式,通过( )可以配置模式。
A. ERC
B. ARC
C. RRC
D. BRC
【单选题】
主叫端完成资源预留,会通过( )SIP消息通知对端。
A. 100trying
B. Prack
C. Update
D. 200 OK
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