【单选题】
Don’t worry too much, Jane. Your son ___ home already. Let’s go back and check it out.
A. returned
B. will return
C. has returned
D. may have returned
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相关试题
【单选题】
I believe friendship is an essential element of making a healthy, ___ life.
A. flexible
B. rewarding
C. wealthy
D. inquisitive
【单选题】
___ they have written about the behaviors of animals is hardly anything new.
A. That
B. This
C. What
D. Which
【单选题】
No other drugs are as good as this one; it must have been based on a(n) ___ formula (配方).
A. enormous
B. stimulating
C. unique
D. overwhelming
【单选题】
Mothers tend to be too ___ toward their children. They should let them see more of the worl D.
A. hopeful
B. protective
C. modest
D. encouraging
【单选题】
The investigation ___ evidence of a large-scale illegal trade in wild birds.
A. uncovered
B. outweighed
C. overwhelmed
D. evolved
【单选题】
Poor Laura! I feel so sorry for her. When she fell, she hurt her arm and, ___, broke her glasses.
A. in advance
B. in addition
C. over time
D. on the other hand
【单选题】
Showing some sense of humor can be a(n) ___ way to deal with some stressful situations.
A. genuine
B. available
C. effective
D. favorite
【单选题】
It will be worth the efforts even if you fail; the rewards you ___ will be great.
A. reap
B. boast
C. assure
D. cultivate
【单选题】
He suggested transporting the supplies by air. But it is absolutely ___, for it will cost too much.
A. unusual
B. uncertain
C. impractical
D. impressive
【单选题】
The newspaper didn’t mention the ___ of the damage caused by the fire.
A. range
B. level
C. extent
D. quantity
【单选题】
Do you ___ her novels as serious literature or as mere entertainment?
A. classify
B. notify
C. simplify
D. justify
【单选题】
He doesn’t ___ of buying a house this year because the bank has refused to lend him any money.
A. afford
B. make the most
C. run out
D. stand a chance
【单选题】
If you don’t ___ cooking today, we can go out to eat at the new restaurant.
A. would like
B. go on with
C. feel like
D. figure out、
【单选题】
Bullying (恃强欺弱) can ___ a climate of fear and anxiety in school, and prevent students from focusing on their schoolwork.
A. keep back
B. give rise to
C. feel like
D. make use of
【单选题】
Science can now ___ many things which were thought to be mysterious by ancient people.
A. care for
B. lay out
C. account for
D. set up
【单选题】
The school has ___ many after-class activity groups for the pupils to make their spare time more colorful.
A. set up
B. set off
C. set out
D. set down
【单选题】
When he was a small kid, he ___ from his peers because he could read fast and remember whatever he rea D.
A. showed off
B. worked out
C. stood out
D. straightened up
【单选题】
The fall in the number of deaths from heart disease is generally ___ improvements in diet.
A. put up with
B. attributed to
C. added to
D. replaced with
【单选题】
We can be partners for now, but ultimately you have to ___ to develop a new software for our project.
A. keep up
B. fire off
C. make sense
D. take the lead
【单选题】
Emotional Intelligence (情商) could be of practical use in many ___ such as how companies decide which job applicant to hire, how parents should raise their children, how schools should teach the students, and so on.
A. aspects
B. disciplines
C. structures
D. opportunities
【单选题】
The teacher should praise students for their correct answers and also suggest ___ possibilities.
A. unlimited
B. unique
C. alternative
D. essential
【单选题】
In some classrooms, desks are arranged in a U-shape, so the teacher can ___ easily with the students.
A. interrupt
B. interact
C. interpret
D. interview
【单选题】
Computer technology ___ individuals to educate themselves and adapt to a constantly changing job market.
A. lets
B. makes
C. enables
D. provides
【单选题】
Our hope for an enjoyable dinner was instantly ___ when the waiter dropped a salad plate on my hea D.
A. spoiled
B. restricted
C. exploded
D. vanished
【单选题】
___ the world has ever seen has occurred in the information and communications technologies.
A. Great a change
B. The great change
C. A greatest change
D. The greatest change
【单选题】
___ so many people around, it wasn’t convenient to have a long talk with him.
A. As
B. When
C. With
D. Since
【单选题】
Alice used to be terribly shy, but working abroad for a year has completely ___ her.
A. solved
B. transformed
C. characterized
D. regulated
【单选题】
Chinese Mandarin (普通话) is ___ for foreigners to learn because the changes in the tone will totally change the meaning of words.
A. difficult
B. accessible
C. competitive
D. easy
【单选题】
Take action on those things that will have the biggest ___ impact on your life with the least amount of effort.
A. portable
B. positive
C. sophisticated
D. moderate
【单选题】
The adoption of this measure will greatly reduce the ___ of greenhouse gas emissions (排放物), which may help slow global warming.
A. loan
B. decline
C. release
D. response
【单选题】
I think I have a healthy lifestyle. I eat a lot of fruit and vegetables, and I’m a ___ drinker.
A. moderate
B. heavy
C. gradual
D. delicate
【单选题】
In a way the human race needs to improve its mental and physical qualities if it is to deal with the more and more ___ world and meet new challenges.
A. typical
B. complex
C. rational
D. orderly
【单选题】
If a person simply does not care about this activity, it’s ___ impossible to get him to participate.
A. barely
B. seldom
C. hardly
D. practically
【单选题】
Sometimes, even when the mind ___ functioning, the body keeps on working normally.
A. ceases
B. arouses
C. regulates
D. specializes
【单选题】
Jeffery expressed his ___ about the health and fitness of his co-workers, but they said they didn’t want to “waste time” on an exercise bike or jogging.
A. agony
B. concern
C. addiction
D. feedback
【单选题】
Such chemicals are indeed negatively ___ those humans to whom they are expose D.
A. risking
B. detecting
C. impacting
D. overwhelming
【单选题】
We regret for selling you the faulty product, and our company has agreed to ___ you by $500.
A. match
B. reverse
C. reward
D. compensate
【单选题】
This lecture taught me how to manage my time better to include my online studies in my busy ___.
A. schedule
B. outline
C. structure
D. responsibility
【单选题】
Generally speaking, an Irish person will not accept an offer straight away; he will ___ once or twice first before accepting it.
A. receive
B. decline
C. summarize
D. polish
【单选题】
There is every possibility that many species (物种) of animals will die out because of their disappearing food ___.
A. mode
B. source
C. pattern
D. foundation
推荐试题
【多选题】
在 OSPF 网络中,对于自治系统边界路由器 ASBR ,下列描述正确的是( )___
A. ASBR 是那些将其它路由协议发现的路由引入到 OSPF 中的路由器
B. ASBR 不一定要位于 AS 的边界,而是可以在自治系统中的任何位置( Stub 区除外)
C. ABR 不可能同时为 ASBR
D. ASBR 必须连接两个 OSPF 区域
E.
F.
【多选题】
在 OSPF 协议中,对于 DR 的描述,下列正确的有哪些( )___
A. DR 由本网络中所有的路由器共同选举
B. 若两台路由器的优先级值不同,选择优先级值较小的路由器作为 DR
C. 若两台路由器的优先级值相等,选择 Router ID 大的路由器作为
D. R D.DR 和 BDR 之间建立邻接关系
E.
F.
【多选题】
在OSPF路由协议中,一台 ABR ( Area Border Router )同时可以是如下哪些角色.( )___
A. IR ( Internal Router )
B. BR ( Backbone Router )
C. ASBR
D. Stub Router
E.
F.
【多选题】
在包过滤防火墙中,常使用"五元组"来做过滤策略,这里的"五元组"包括有( ).___
A. IP地址
B. 协议号
C. 端口号
D. 应用程序
E.
F.
【多选题】
在对负载均衡器设备选型时一般要关注、了解哪些方面.( )___
A. 支持的负载均衡算法
B. 支持的服务器健康检查的方法
C. 如何保持客户端和服务器的会话
D. 端口数量
E.
F.
【多选题】
在对华为MA5680T光接入设备进行故障处理前,需进行故障信息收集。其中故障信息的来源有()。___
A. 用户或客户服务中心的故障申告
B. 日常维护或巡检中所发现的异常
C. 网管告警系统的告警输出
D. 对接设备维护人员的故障通告
E.
F.
【多选题】
在监控快速移动的物体时,如汽车等,摄像机应该如何调试( )。___
A. 自动光圈镜头
B. 手动光圈镜头
C. 电子快门模式
D. 自动光圈模式,快门设成1/120或者1/250等
E.
F.
【多选题】
在确定路由设备部件发生故障、在保修范围时,需要提供下列信息( )___
A. 需要返修的合同号
B. 需要返修的部件型号
C. 需要返修的部件序列号
D. 联系地址、电话等
E.
F.
【多选题】
在同一区域内的两台IS, 下列说法对的是( )___
A. 可以有不同的Area ID
B. 必须有相同的Area ID
C. 它们的System ID 必须不同
D. 它们的System ID 可以相同
E.
F.
【多选题】
在无特殊需求的情况下路由器要关闭自身的( )服务和端口,从而防止网络攻击.___
A. FTP登入
B. web登入
C. telnet登入
D. IP数据
E.
F.
【多选题】
造成sdh设备出现帧失步的原因可能有以下哪几点()___
A. 传输过程误码过大
B. 对端站发送部分故障
C. 接收信号衰减过大
D. 光纤断
E.
F.
【多选题】
支持可变长子网掩码的路由协议有( )___
A. RIP v1
B. RIP v2
C. OSPF
D. IS-IS
E.
F.
【多选题】
支路板的某一通道的保护属性设置为“有保护”,表示 ( )___
A. 在复用段保护环时,该通道的业务有保护
B. 在通道保护环时,该通道的业务有保护
C. 在SNCP保护环时,该通道的业务有保护
D. 在链形保护时,该通道的业务有保护
E.
F.
【多选题】
指针调整的作用有哪些?( )___
A. 当网络处于同步工作状态时,指针用于进行同步信号之间的相位校准
B. 当网络失去同步时,指针用作频率和相位的校准;当网络处于异步工作时,指针用作频率跟踪校准
C. 指针还可以容纳网络中的相位抖动和漂移
D. 都不对
E.
F.
【多选题】
中国移动IMS网络架构可分以下几个层次( )___
A. 承载控制与接入层
B. 应用层
C. 会话控制层
D. 业务能力层
E.
F.
【多选题】
专线业务包括( )___
A. 语音专线
B. GPRS专线
C. 互联网专线
D. 传输电路出租
E.
F.
【多选题】
钻石客户路由器设备故障的原因有:( )___
A. 由于外力施工、人为破坏、自然灾害等引起客户侧网络正常工作。
B. 设备、端口老化引起的故障
C. 链路负荷太高引起或线路质量差引起
D. 设备软件或硬件bug引起
E.
F.
【多选题】
作为有线网络的传输介质,光纤和双绞线相比有哪些优势()___
A. 传输的距离更远
B. 光纤比双绞线便宜
C. 光纤抗干扰性高于双绞线,不容易被干扰
D. 可以支持更高的速率
E.
F.
【多选题】
5520 网管的账户级别有( )___
A. Operator
B. Maintenance
C. user
D. Administrator
E.
F.
【多选题】
7360 GPON系统中在配置UNI时,可以采用的工作模式( )___
A. PVID
B. single-tagged
C. UNTRUSTED
D. Ethertype classification
E.
F.
【多选题】
7360 GPON在对设备上电时必须检查风扇的工作状态,并确保其工作正常.如下表述正确的是( )___
A. 风扇检测不到,设备依然能运行30分钟以上
B. 风扇检测不到,设备将无法正常启动
C. 出现单路风扇盘告警,设备将自动下电保护
D. 可以通过下命令,查看风扇告警消息
E.
F.
【多选题】
7360 GPON中,可通过将ONT的bridge port 下的( ),来控制其转发tag还是untag报文.___
A. PVID 参数
B. BW
C. PQ
D. single-tagged参数
E.
F.
【多选题】
DBA有哪些机制都可以上报DBA申请.( )___
A. PLOu中的Ind状态
B. Gem Payload为DBA报告信息
C. DBRu中的Piggy-back
D. Preamble前导字段
E.
F.
【多选题】
FTTH接入用户,ONU安装基本要求有( )___
A. 光分路箱
B. 环境较好、安全、方便、便于进出线
C. 光交接箱
D. 容易取电
E.
F.
【多选题】
GPON ONU状态可能会是( )___
A. offline
B. logging
C. syncMib
D. working
E.
F.
【多选题】
GPON的上行光波长为( ),下行光波长为( )___
A. 1490nm
B. 990nm
C. 1550nm
D. 1310nm
E.
F.
【多选题】
GPON技术的上行速率为( ),下行速率为( )___
A. 2.5Gbps
B. 10Gbps
C. 1.25Gbps
D. 2Gbps
E.
F.
【多选题】
GPON技术可以承载哪些业务.( )___
A. TDM
B. Ethernet
C. FDDI
D. ATM
E.
F.
【多选题】
GPON技术相对于传统的接入技术的技术优势是( )___
A. 提供多种业务
B. 高带宽
C. 传输距离远
D. 节约线路资源
E.
F.
【多选题】
GPON网络中使用的PON设备主要有以下几家厂商的设备( )___
A. 中兴
B. 烽火
C. 联想
D. 华为
E.
F.
【多选题】
GPON与EPON相比较,GPON的优点有( )___
A. 综合业务支持好
B. 更高的带宽
C. 更远的传输距离
D. 标准完善
E.
F.
【多选题】
MA5616是一款FTTC设备,其电源输入有直连和交流方式,以下直流的单元板有( )___
A. H831PAIA
B. H801PRTE
C. H831PDIA
D. H831PAIB
E.
F.
【多选题】
OLT版本升级中需要下载的版本类有( )___
A. mvr
B. fw
C. bt
D. log
E.
F.
【多选题】
OLT及ONU版本升级业务操作中,当前可以通过( )方式对设备进行版本或补丁的升级操作.___
A. 通过手机或手持PAD进行升级
B. 通过updatetools 进行升级
C. 通过命令行方式远程或现场进行升级
D. 通过OMC创建自动任务进行升级
E.
F.
【多选题】
OLT上联口链路聚合常用的方式有( )___
A. passive
B. active
C. on
D. up
E.
F.
【多选题】
OLT以广播的方式向ONU发送PCBd(Physical Control Block downstream),每个ONU都会收到整个PCBd,然后会根据相关的信息执行动作,其中PCBd里包含( )内容.___
A. 帧同步信息
B. PloU
C. 物理层OAM
D. BIP校验字段
E.
F.
【多选题】
ONU有以下哪些认证方式.( )___
A. 物理标识认证
B. 逻辑标识认证
C. 型号认证
D. 手动认证
E.
F.
【多选题】
ONU在网管上脱管的原因可能是( )___
A. 用户侧电缆断
B. ONU断纤
C. ONU掉电
D. 上联分光器坏
E.
F.
【多选题】
PON是以点到多点为特征的单纤双向无源光网络,它包括三个组成部分( )___
A. ONU
B. ODN
C. OLT
D. BAM
E.
F.
【多选题】
PON系统中,可能同时有( )在光纤中通行.___
A. 1310nm波长光信号,携带下行信号
B. 1310nm波长光信号,携带上行信号
C. 1490nm波长光信号,携带下行信号
D. 1490nm波长光信号,携带上行信号
E.
F.