共用题干题

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

为完成上述请求，采用最短寻道时间优先磁盘调度算法（SSTF）时磁头移动的总量是（）。

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.

A.the remote controller
B.the ultrasound sensor
C.the big and square yard

A.encourage people to do exercise
B.help people keep healthy and fit
C.make people enjoy family time

A.a newly-designed robot
B.The founder of a company
C.problems with a new product

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

A.The giant.
B.The ant.
C.The ant′s friends
D.Her tears.

A.He would eat her
B.He would let her go
C.He would take her away
D.He would send her to prison

A.Because of her sadness
B.Because she saw the ant
C.Because the giant would let her go
D.Because the giant had given her an impossible job to do.

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.

A.so
B.as
C.for
D.like