问题 多项选择题

UMG8900提供鸳鸯线测试功能,以下描述正确的有()。

A、鸳鸯线是由于收发链路交叉错配引起的

B、存在鸳鸯线故障时,设备的各端口依然可以收到载波信号,只是收到的是其它端口发来的。所以这种情况下不能触发告警,也不能通过环回方式来检查,只能通过插入和接收检测数据才能进行检测和定位

C、UMG8900设备提供CHKE1CROSS命令检查E32/T32单板是否存在鸳鸯线。使用时,不需要将远端设备设置为外环回

D、执行鸳鸯线检测命令,输出的检测结果中如果端口为OK,则标识本端口正常;如果输出的结果为[0-31],则标识此端口收到是输出数字制定端口的数据,即此端口和输出数字指定端口配成了鸳鸯线

答案

参考答案:A, B, D

填空题
完形填空
Twenty years ago, Mark Thatcher, the son of Mrs. Thatcher, was reported missing in the Sahara Desert while competing in the Grand Prix Motor race from Paris to Daker. The sad news, so unexpected, shook the unusually      and unhurried politician off her balance. Though she did her best to    as if nothing had happened and made her public appearance as usual, people could not fail to notice that she was no longer the old self-assured prime minister who always had everything under    . Instead she had become a very sad mother who was unable to     from her shock.
One day when she was to    at a lunch party, a reporter caught her off her guard by bringing up the     of her missing son again. She was    mentally unprepared for the question and lost her self-control. Tears were    her cheeks    she sobbingly told the reporter there was still no news of Mark and that she was very worried about him. She said that all the countries concerned had    to do their best to help her find her son. With that she    down completely and sobbed silently for quite a while. Gradually she calmed down and started to speak as    . It was a very    scene which exposed a new side of Mrs. Thatcher’s    the public do not usually see. People began to talk about the Iron Woman’s     love, a    that is common to all human race.
Later Mark returned    to his mother’s side, good-humored and all smiles as usual   nothing unusual had ever happened. The Iron Woman,      , broke down again and was     sobbing for a second time.
小题1:
A.outstandingB.busy C.calm D.considerate
小题2:
A.seem B.talk C.doD.pretend
小题3:
A.constructionB.controlC.discussion D.pressure
小题4:
A.respond B.relieveC.reduce D.recover
小题5:
A.arriveB.eatC.speakD.read
小题6:
A.subject B.object C.theme D.message
小题7:
A.hardlyB.totallyC.partly D.mostly
小题8:
A.putting downB.taking offC.getting offD.rolling down
小题9:
A.because B.thoughC.ifD.as
小题10:
A.permittedB.admittedC.promised D.managed
小题11:
A.fellB.wentC.broke D.brought
小题12:
A.agreedB.plannedC.announcedD.explained
小题13:
A.moving B.shocking C.interestingD.serious
小题14:
A.quality B.action C.position D.character
小题15:
A.livelyB.likelyC.lovelyD.motherly
小题16:
A.habitB.hobby C.feelingD.thought
小题17:
A.hungry and tired B.safe and funny C.safe and soundD.tired and sleepy
小题18:
A.as ifB.even ifC.so thatD.if only
小题19:
A.thereforeB.howeverC.besidesD.thus
小题20:
A.made B.heardC.felt D.seen