网络互连设备可以在不同的层次上进行网络互连,工作在应用层的互连设备是网桥。

题型:判断题

问题:

网络互连设备可以在不同的层次上进行网络互连,工作在应用层的互连设备是网桥。

考点:网络知识竞赛网络知识竞赛题库
题型:判断题

避免对研究参与者造成伤害与不合理的痛苦包括哪些?

题型:判断题

电能和电功率的单位分别是(  )

A.千瓦时和焦耳

B.千瓦和瓦特

C.焦耳和瓦特

D.千瓦和千瓦时

题型:判断题

突发剧烈胸痛伴呼吸困难和发绀常见于()

A.急性心肌梗死

B.心绞痛

C.急性左心衰竭

D.肺梗死

E.大叶性肺炎

题型:判断题
It was one of those cold winter nights in the Haight-Ashbury district of San Francisco . I was driving an eyesore(丑陋的东西)that could only be  36  as a “ car ” by someone who was either a shameless liar or a good friend .
It was  37  to drive the car because you had to keep your fingers and toes crossed to keep the engine running . I tried to imagine I was driving a huge clumsy  38  ; that way I didn’t  39  the slow speed .
That night I must have uncrossed my fingers to scratch something . The car  40  in the middle of a four-lane stretch of Oak Street . I  41  for a place to turn off(拐弯), but the street was lined with parked cars .
There I sat , in  42  traffic , as tons of vehicles screamed by . In my rearview mirror(后视镜)I saw a car  43  behind me . I knew what was coming . Soon the horn would start and someone would be  44  at me . But I was  45  .
A stranger got out of the car and came to my  46  . He asked , “ Do you want a  47  ?”
I was surprised but  48  . And then he  49  to his car and two teens piled out to help push my car . When I was  50  delivered to a side street , they got back into their car and rejoined the sea of  51  . I didn’t get to  52  them .
Over the years I’ve realized something about the  53  who stopped to help . I’ve noticed that every time I’m in  54  , he appears . The one true thing in this world is an unasked  55  provided by a stranger .
小题1:
A.heard ofB.referred toC.looked downD.talked about
小题2:
A.difficultB.interestingC.funnyD.special
小题3:
A.truckB.carC.bicycleD.snail
小题4:
A.realizeB.feel C.mindD.notice
小题5:
A.gotB.diedC.slowedD.began
小题6:
A.hopedB.askedC.caredD.waited
小题7:
A.lateB.fastC.busyD.local
小题8:
A.break downB.speed upC.pass byD.pull up
小题9:
A.shoutingB.walkingC.aimingD.rushing
小题10:
A.luckyB.wrongC.stupidD.sorry
小题11:
A.mindB.wayC.windowD.seat
小题12:
A.changeB.rideC.liftD.push
小题13:
A.listenedB.insistedC.noddedD.watched
小题14:
A.wavedB.smiledC.pointedD.drove
小题15:
A.readilyB.quietlyC.simplyD.safely
小题16:
A.teensB.trafficC.passers-byD.travelers
小题17:
A.waitB.recognizeC.thankD.notice
小题18:
A.strangerB.driverC.repairmanD.friend
小题19:
A.debtB.troubleC.surpriseD.despair
小题20:
A.courageB.comfortC.suggestionD.kindness
题型:判断题

如图所示,出租汽车驾驶员在运营过程中遇受伤乘客,应()

A.额外收取服务费用

B.无视其乘车需求,加速通过

C.无偿提供租车服务

D.不得以任何理由拒载

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