假设一个磁盘有200个磁道,编号从0~199。当前磁头正在143道上服务,并且刚刚完成了125道的请求。如果寻道请求队列的顺序是86,147,91,177,94,150,102,175,130
A.565B.576C.162D.125
单项选择题Which of the following about Waelbers is TRUE?()
A.He didn't love building robots when he was a young boy.B.His father asked him to make a robot that could play balls.C.He is starting to sell this snow-shoveling robot in early 2017.
单项选择题The robot would stop in front of pets and people thanks to().
A.the remote controllerB.the ultrasound sensorC.the big and square yard
单项选择题According to Steven Waelbers,the robot is designed to().
A.encourage people to do exerciseB.help people keep healthy and fitC.make people enjoy family time
单项选择题This article mainly talks about().
A.a newly-designed robotB.The founder of a companyC.problems with a new product
单项选择题患者烦躁不安,为防止患者受伤应采取的保护措施是()。
A.使用绷带B.使用肩部约束带C.使用双侧床挡防止坠床D.使用双膝固定防止坠床E.使用腹部约束带
单项选择题Who or what saved the girl’s life?()
A.The giant.B.The ant.C.The ant′s friendsD.Her tears.
单项选择题What would the giant do if the girl failed to do the work?()
A.He would eat herB.He would let her goC.He would take her awayD.He would send her to prison
单项选择题Why was the young girl crying?()
A.Because of her sadnessB.Because she saw the antC.Because the giant would let her goD.Because the giant had given her an impossible job to do.
单项选择题When did the drop of water fall on the ant?()
A.When it was looking for food.B.When it saved the ant’s life.C.When it was nearly dying.D.When it looked up.
单项选择题【C10】()
A.soB.asC.forD.like
单项选择题【C9】()
A.referB.confineC.contributeD.dedicate
单项选择题【C8】()
A.qualifiedB.honestC.responsibleD.confident
单项选择题【C7】()
A.responsesB.questionsC.commentsD.patterns
单项选择题【C6】()
A.averageB.overallC.actualD.acceptable
单项选择题【C5】()
A.awayB.acrossC.offD.apart