【判断题】
维护人员判断故障原因，如在职责范围内的应在规定时限内修复。如不在职责范围内（上端设备或出光缆问题），必须在第一时间电话通知工程维护部门处理，并同用户进行沟通解释，说明目前存在的问题，及下一步措施，取得客户的感知认同
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维护中，不同型号的SDH线路板板是可以互换的。
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尾纤捆扎后，余纤盘放时，盘纤半径为3cm；
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我国7号信令网是两层架构，采用双平面结构。
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我们的时钟同步网信号是通过SDH设备传递的，映射过程会Y时钟性能产生影响。
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无输入信号上光路传输，光路上传送的是AIS信号。
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误码率的大小由通路的系统特性和信道质量决定。
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误码是指经接收、判决、再生后，数字码流中的某些比特发生了差N。
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先抢通，后抢修”原则是网络故障处理总的指导原则
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相同型号的ONU之间更换时，需在7342 GPON设备上更改相应的序列号。
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协议转换器E1的接口编码是HDB3，阻抗是120欧姆
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协议转换器是把光端机的同步信号应用的某种协议转换为以太或者其他路由器或者交换机可以接受的协议的一个设备。
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协转上只有PWR和LINK灯亮时，表明设备工作正常。
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新版本补丁的实施时，随工人员必须在软件版本升级、补丁加载实施当天15:00以前，发布公告，通报开始时间、预计结束时间、 影响业务时长、可能影响业务、可能影响地区等要素。
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信号夹钳适用于给管道或电缆施加信号而无需中断服务，而且可以减小感应到其它管线的信号
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信令链路是连接节点的数据链路，在七号信令网中是速率为64Kbps的数字链路。
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修改网管系统中的SNMP模板会Y已经添加到网管中的设备造成影响
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巡检的项目都要拍下来，并把巡检的照片传到资料服务器上。巡检过程中不合格的都要拍照，并把整改后的拍照纪录，以做证明。照片的分辨率不易过高，保持每张设备照片在100K以内，环境照片在200K以内
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业务的1+1保护方式比1：1方式倒换速度要快，但信道利用率较低。
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业务开通交付报告的内容包括：项目概述、网络拓扑，业务交付测试报告、电路清单、设备清单、服务承诺、故障申告流程等内容。
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业务开通时限与同一地市同一客户的接入点数量无关。
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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。
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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
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一个Ｃ类网段，最多可用划分128个子网
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一个VC-4时隙包含3个VC-3时隙, 可以容纳4个34M信号。
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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。
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一个主机的ARP高速缓存一旦创建，则它永远工作良好。
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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。
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一块EXNT-A的板卡最大可以提供22GE的接口带宽。
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一台路由器就可以是一个网络级的防火墙。
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一致路由，从业务的角度来描述即为双向业务。
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移动集团互联网提供的带宽主要有2M、8M、100M。
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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。
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- Why didn't you tell me? ____
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B. I'm sorry you should wait.
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【单选题】
- You have won the football game. Congratulations! ____
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- Excuse me, when will the 17:15 train arrive____
A. I don't tell you.
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C. Sorry, I'm a stranger here.
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- Sorry, ___
A. here you are.
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－What's this in English? ____
A. It's a map.
B. That is a map.
C. Yes, it's a map.
D. No, it isn't.
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- I hear you got through your exam. Congratulations!____
A. No. I didn't do well enough.
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C. Thanks.
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C. It doesn't matter.
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A. Excuse me
B. Sorry
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- Thanks for the lovely and delicious food______.
A. No thanks
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A. You do not have to.
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--Will you please give the note to him? _________.
A. Certainly, I'll give it to him
B. No, please not
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D. Yes, please do
【单选题】
- Thank you ever so much for your lovely gift____
A. Never mind
B. I'm glad you like it.
C. Please don't say so.
D. No, It's not so good.
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- I'd like to invite you to dinner this Saturday, Mr. Smith.____
A. Oh, no. let's not.
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- Could you please open the window?____
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B. I'm sorry, but I really need it this afternoon.
C. Yes, I don't think so.
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- Thank you very much for the dictionary you sent me.____
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A. Sorry, I don't need your help.
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D. I can't say anything more.
