相关试题
【判断题】
一般跨省集团客户的总部或中心点单端核心汇聚电路（如CPOS电路等）业务保障等级为ＡＡ级。
【判断题】
一般来说，有高阶误码则会有低阶误码,反之，有低阶误码不一定有高阶误码。
【判断题】
一个Ｃ类地址的掩码是255.255.255.240，则该网段上可用的主机数最多是1６个
【判断题】
一个Ｃ类网段，最多可用划分128个子网
【判断题】
一个VC-4时隙包含3个VC-3时隙, 可以容纳4个34M信号。
【判断题】
一个路由区可以包含多个小区，一个小区可以属于两个路由区。
【判断题】
一个主机的ARP高速缓存一旦创建，则它永远工作良好。
【判断题】
一根光纤只完成一个方向光信号的传输，反向光信号的传输由另一根光纤来完成，因此同一波长在两个方向上不可以重复利用。
【判断题】
一块EXNT-A的板卡最大可以提供22GE的接口带宽。
【判断题】
一台路由器就可以是一个网络级的防火墙。
【判断题】
一致路由，从业务的角度来描述即为双向业务。
【判断题】
移动公司提供给集团客户的网络质量指标要求只与业务保障等级有关而与客户服务等级无关。
【判断题】
移动集团互联网提供的带宽主要有2M、8M、100M。
【判断题】
以太网技术是一项应用广泛的技术，按照不同传输速率来分，有10M、100M、1000M三类，其中10M与100M以太网的常用传输介质为双绞线，但1000M以太网由于速度过高，传输介质必须用光纤。
【判断题】
以太网中交换机可以将网络分成多个冲突域，但不能将网络分成多个广播域。
【判断题】
银牌集团客户故障阶段反馈要求为每1小时主动反馈客户，故障处理完成后30分钟内向客户口头反馈，在故障处理结束后按需向客户提交故障处理的书面报告。
【判断题】
影响光信号在光纤中传输距离的主要因素有色散、损耗和折射。
【判断题】
应急演练服务可以根据客户需要不定期开展业务级的应急演练。
【判断题】
用户拨号提示N误691说明BAS没有影响，有可能是到BAS的二层通道不通。
【判断题】
用户使用佳和PBX时，摘机、挂机、振铃工作发生时，用户板LED灯的状态分别是亮、灭、亮
【判断题】
用户在激活请求中不带APN，也可以激活。
【判断题】
用网络工兵寻找网线Y端时候，蜂鸣器会根据和Y端网线的距离变化声音大小。
【判断题】
用一个光功率计在ODF的接收连接器上测量接收光功率，Y端发送功率值减去这个接收功率值就是这条光纤线路的衰减值。
【判断题】
用仪表进行误码测试时，可以在线测试和离线测试。
【判断题】
由于SDH设备的可维护性增强，相应的频带利用率比PDH要低。
【判断题】
由于多模光纤可传输多种模式信号使传输容量倍增，所以该光纤在长途传输中得到广泛应用。（）
【判断题】
有一条4M的ADSL宽带，通过仪表测试线路上的远端信噪比大小为 5.4dB，下行带宽可以达到4096kbps。
【判断题】
遇到联系不到或关机停机的用户，维护人员将直接上门，如用户不在家，以留纸条和发短信的形式联系用户
【判断题】
在ADM设备中，可利用软件一次从高速信号中分插出2Mb/s支路信号。
【判断题】
在DWDM系统中，我们希望设备的色散代价越大越好。
【判断题】
在Gb接口上，GPRS信令和用户数据在同一个传输平台上发送，不要求为信令分配专用的物理资源。
【判断题】
在ISO的OSI模型中，表示层能实现数据压缩功能。
【判断题】
在MA5610上使用的单板ASPB和ASRB，可以在MA5616上使用
【判断题】
在OSPF协议中规定骨干区域不能配置成STUB 区域，虚连接不能穿过STUB 区域
【判断题】
在PDH中，允许各支路信号之间不完全同步。
【判断题】
在SDH网中传送定时时，在SDH网元之间采用STM-N接口。
推荐试题
【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that．
A. not to do B. not do to
C. dont do D. not do
【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
【单选题】
6. A friend of my ____ and I are going to visit_______ next week．
A. father; Browns B. father's; Browns
C. father; the Browns D. father's; the Browns
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
【单选题】
9.—Well do what we can ____English well this term．
—It’s high time for you to work hard．
A. study B．to study C. be studied D. be studying
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
【单选题】
14. We will have a _________ holiday after the exam．
A. two-month B. two month’s C. two month D. two-months
【单选题】
15. —We will build an underground in Xuzhou before 2015．
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
【单选题】
16. — Emily, here’s a dictionary．I hope it will help you in some way．
— Thank you．It’s ________ what I need．
A. almost B. still C. only D. just
【单选题】
17. —Oh．I’m hungry．Mum, can I have the hamburger on the plate?
—No．It tastes ．
A. terribly B. terrible C. good D. well
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years．
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
【单选题】
20.—I’m going back to see my grandparents this weekend．
—________．
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
【单选题】
22. —Do you know the boy________ is sitting next to Peter?
— Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A. who; ninth B. that; ninth C. /; ninth D. which; ninth
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
【单选题】
24.—You can use MSN to talk with Vivien on the Internet.
—I know. But can you tell me ________?
A. what I can use it B. when I can use it
C. why can I use it D. how can I use it
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ?
To learn about different styles of school uniform.
A. What B. Where C. Which D. Why
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A．England． B．France． C．America． D．China．
【单选题】
( ) 27. What does the prince do after the fox tells him a secret?
A．He cares more about a flower and a sheep．
B．He meets many more strange adults on other planets．
C．He realizes his love for the rose and he goes back to his planet．
D．He discovers interesting things such as a snake, other roses and a fox
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________．
A．the adult world B．the planet B -612
C．a rose and a fox D．the adventure of a young prince
【单选题】
( ) 29. What is the writer's main purpose（目的）in writing this passage？
A．To tell the readers his life story．
B．To tell people what kind of person his father was．
C．To tell the readers what present he got from his father．
D． To let people know how poor he was．
【单选题】
( ) 30. Why did the father not ask his son not to do this and do that？
A．Because he felt quite confident of his son．
B．Because he was born from a poor family．
C．Because he was a man of few words．
D．Because he didn't want to be much too strict with his son．
【单选题】
( ) 31. What would someone learn from this passage？
A．How to live by oneself． B．How to stand on one's own feet．
C．What a good father should do． D．What the self-important is like．
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage？
A．闲暇时光 B．学费 C．精神空虚 D．经济不足
【单选题】
( ) 33. Why did Natalie Smith pay for the six cars behind her?
A. She had seven tickets.
B. She hoped to please others.
C. She knew the car drivers well.
D. She wanted to show kindness.
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ .
A. thought it was beautifully written
B. wanted to know what it really meant
C. decided to write it on a warehouse wall
D. wanted her husband to put it up in the classroom
【单选题】
( ) 35. Who came up with the phrase according to the passage?
A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
【单选题】
( ) 36. What can we infer from the last paragraph?
A. People should practice random kindness to those in need.
B. People who receive kindness are likely to offer it to others.
C. People should practice random kindness to strangers they meet.
D. People who receive kindness are likely to pay it back to the giver.
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
【单选题】
( ) 38. From a dam, people can use the water for ___________.
A. keeping the rivers clean B. only making electricity
C. irrigation and making electricity D. washing clothes
【单选题】
( ) 39. The water in the river is polluted because of _____________.
A. people's drinking water too much B. people's swimming in the river too much
C. chemicals and other materials D. people's building a dam across a river
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources
