【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
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答案
D
解析
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相关试题
【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.
【单选题】
This passage is most probably taken from an article entitled "_________".___
A. Energy Conservation
B. Air Pollution Indoors
C. House Building Crisis
D. Traps in Building Construction
【单选题】
We need to plan ahead in order to ___________.___
A. keep a record of all the events    
B. better organize our activities
C. store everything in our head      
D. pile up little tasks neatly
【单选题】
Strategic times are best for us to ___________.___
A. save energy      
B. check e-mails            
C. study efficiently            
D. organize activities
【单选题】
Which of the following could be used as a motivation to do our assignments?___
A. Remembering our urgent tasks.      
B. Any activities we're eager to do.
C. Taking a break in the afternoon.  
D. The promise to study efficiently.
【单选题】
What can help us to keep refreshed throughout the day?___
A. Doing some physical exercise.        
B. Taking a short nap in the afternoon.
C. Rushing through some assignments.  
D. Playing a game of chess with a friend.
【单选题】
Which of the following could be the best title for this article?___
A. Study Habits and Time Management  
B. Business Management and Leadership
C. University Education and Campus Life      
D. Life Goals and Academic Development
【单选题】
It is implied in the text that it is hard to ________.___
A. carry life learning though  
B. tell the nature of life learning
C. learn without going to school
D. find a specially trained teacher
【单选题】
According to the author, the schooling framework often ________.___
A. produces slow students with poor memories
B. ignores some parts of the official curriculum
C. fails to provide enough knowledge about life
D. gives little care to the quality of teaching materials
【单选题】
Life learners recognize that learning will not be difficult if they are _________.___
A. clear about why to learn
B. careful to make a time table  
C. able to respect other people
D. cautious about any mistakes
【单选题】
According to the author, life learning ________.___
A. could prevent one from running risks
B. could be a road full of trials and errors
C. makes a kid independent of his parents
D. teaches a kid how to avoid being scorned
【单选题】
Through life learning, children ________.___
A. will grow without the assistance from parents
B. will learn to communicate with the real world
C. will be driven to learn necessary life knowledge
D. will be isolated from the negative side of society
【单选题】
A good title for this passage is __________.___
A. Sleep                 
B. Good Health    
C. Dreams             
D. Work and Rest
【单选题】
The word drowsy in the last paragraph means __________.___
A. sick                   
B. stand up       
C. asleep               
D. a little sleepy
【单选题】
This passage suggests that not getting enough sleep might make you ___________.___
A. dream more often     
B. have poor health   
C. nervous                 
D. breathe quickly
【单选题】
During REM,  ___________ .___
A. your eyes move quickly    
B. you dream  
C. you are restless   
D. both A and B
【单选题】
The average number of hours of sleep that an adult needs is __________.___
A. approximately six hours    
B. around ten hours    
C. about eight hours      
D. not stated here  
【填空题】
___
【填空题】
___
【填空题】
1、肿瘤TNM分类___
【填空题】
2、颞下颌关节紊乱病___
【填空题】
3、继发性牙颌面畸形___
【填空题】
4、Sjogren syndrome___
【填空题】
5、三叉神经痛___
【填空题】
___
【填空题】
①___;
【填空题】
②___;
【填空题】
③___;
【填空题】
④___。
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【多选题】
与SDH 相比,DWDM 在扩容时:___
A. 更容易中断原来的业务
B. 更容易保护原来的业务
C. 比较方便
D. 系统更复杂
【多选题】
SDH网元内部存在的通信方式主要有___
A. 2M通信
B. 邮箱通信
C. 板间通信
D. 串口通信
【多选题】
SDH体制中集中监控功能的实现由___
A. 段开销
B. 线路编码的冗余码
C. 通道开销
D. 业务净负荷
【多选题】
下面的哪些SDH设备告警和性能能够引发复用段保护发生倒换___
A. TU12-AIS
B. AU-AIS
C. MS-AIS
D. R-LOF
【多选题】
SDH设备可配置成TM网元,它的特点是___
A. 所有光方向到TM的业务必须落地;
B. 只能有一个光方向;
C. 不同光方向的业务不能通过光板直接穿通;不同光方向的业务
D. 光板的最高速率必须低于622M。
【判断题】
PTN网络需要感知PWE3所承载的业务。
A. 对
B. 错
【判断题】
PTN的POD41板可以承载IP tunnel。
A. 对
B. 错
【判断题】
对于OptiX PTN 3900上TPS保护,如果接口板D75或者D12故障,对应处理母板+子卡(MP1+MQ1)正常,是不能够进行TPS保护的。
A. 对
B. 错
【判断题】
当ETFC、POD41、EFG2安装在OptiX PTN 1900的第3至第7槽位时,对应的处理板为CXP,不需要配置其他类子卡。
A. 对
B. 错
【判断题】
目前TPS保护倒换支持的处理子卡主要有:MD1,MQ1,CD1。
A. 对
B. 错
【判断题】
MPLS OAM中通过CV(Connectivity Verification)/FFD(Fast Failure Detection)可以检测LSP 的连通性,它们可以在三个报文发送周期内检测到LSP链路故障。
A. 对
B. 错
【判断题】
在创建PTN tunnel时,我们可以设置tunnel的优先级,有0,1,…7,数值越大,优先级越高。
A. 对
B. 错
【判断题】
B1字节位于再生段开销中,可监测出整个STM-N帧在传输中出现了的误码块数,因此高阶通道存在误码时,B1也能检测上报出来。
A. 对
B. 错
【判断题】
ITU-T建议,SDH时钟自由振荡的精度优于4.6ppm,属于G.813时钟。
A. 对
B. 错
【判断题】
按照ITU-T建议规定,复用段倒换时间要求在50ms之内是有条件的,如:全环节点数少于16个等等。
A. 对
B. 错
【判断题】
当SNCP保护环正处于保护倒换状态时,复位设备的SCC板会影响正在运行的业务。
A. 对
B. 错
【判断题】
复用段保护中,一般需要设置各网元的复用段协议ID号,为了保证ID不重复,最好的办法是此复用段协议ID号与网元ID号是一样的。
A. 对
B. 错
【判断题】
PTN912/910/950的XDSL接口板有SHD4和ADS2类型的单板,它们主要用在PTN网络的用户侧。
A. 对
B. 错
【判断题】
目前,PTN中的用户侧到网络侧的CES业务可以支持多条CES业务汇聚到一条PW上。
A. 对
B. 错
【判断题】
目前,现在我们用软件测试光口的光功率除了用网管测量外,还可以用MDS2610测量。
A. 对
B. 错
【判断题】
MDS 2610可以初始化网元数据库
A. 对
B. 错
【判断题】
PTN的ACR时钟和1588时钟都可以实现时间同步。
A. 对
B. 错
【判断题】
对于目前PTN的CES,ATM和以太业务,网管上都支持用PW ping测试。
A. 对
B. 错
【单选题】
高级工]25K型空调双层客车AC380VⅠ、Ⅱ路供电电源的分线箱在_______。___
A. 车辆的底部
B. 车辆上下层的楼梯间内
C. 车辆一侧的墙板内
D. 车辆的顶部
【单选题】
高级工]25T客车逆变电源为空调、电加热器以及其他车载交流380V用电设备供电,变压器为_______用电设备供电。___
A. AC220V
B. DC110V
C. AC380V
D. DC48V
【单选题】
高级工]BSP青藏车空调机组的新风温度控制器探头设在_______附近。___
A. 新风过滤网
B. 送风口
C. 回风口
D. 过渡风道下部
【单选题】
高级工]25型空调控制柜[KLC40C-1T1]的1Q是控制电路的_______保护元件。___
A. 开路
B. 旁路
C. 支路
D. 短路
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C22003185466-1T1]能控制_______空调机组。___
A. 2套
B. 1套
C. 全列车
D. 部分车厢
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C-1T1]中的98,100号线是_______。___
A. 温度控制线
B. 集控线
C. 延时控制线
D. 集中供电线
【单选题】
高级工]25型空调客车的过、欠压继电器的设定值是_______。___
A. 190~230V
B. 187~253V
C. 198~260V
D. 195~240V
【单选题】
高级工]25型空调客车KT1,KT2是_______的时间继电器。___
A. 延时断开
B. 瞬时断开
C. 延时闭合
D. 瞬时闭合
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C-1T1]中温控仪ATC的设定动差值是_______。___
A. 0.5℃
B. 1.5℃
C. 1.4℃
D. 1.0℃
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C-1T1]的热继电器FR1是_______的过载保护元件。___
A. 通风机
B. 压缩机
C. 冷凝机
D. 废排风机
【单选题】
高级工]25T型客车检修规程规定:对于空调试验,满负载运行1h以上,测量控制柜各接线端子温度须符合以下要求:接线处温度不得高于环温35℃或实测温度不得高于_______。___
A. 50℃
B. 60℃
C. 70℃
D. 80℃
【单选题】
高级工]25T型客车检修规程规定:对于空调试验,同一电器三相接线处温度差不得高于_______。___
A. 15℃
B. 20℃
C. 25℃
D. 30℃
【单选题】
高级工]25T型客车检修规程规定:对于空调试验,同一接线排各通电接头温度差不得高于_______。___
A. 20℃
B. 25℃
C. 30℃
D. 35℃
【单选题】
高级工]25T型客车检修规程规定:对于空调试验,外温22℃以上时,运转30min之内,外温与出风口处温差不大于_______。___
A. 12℃
B. 10℃
C. 13℃
D. 15℃
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C-1T1]中12号线是_______控制线。___
A. 制冷
B. 制热
C. 手动
D. 自动
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C-1T1]中KA1~KA2,KA5~KA6是高灵敏、_______继电器。___
A. 高电压
B. 普通
C. 高内阻
D. 小电流
【单选题】
高级工]25K型空调客车的空调控制柜[KLC40C-1T1]是通过电流继电器FA6,FA7对两台_______进行过载保护的。___
A. 通风机
B. 压缩机
C. 冷凝机
D. 废排风机