What kinds of people rent their home furnishings instead of buying them? People who are international business or government officials, foreign students, airline workers. young married couples-people Whose job or business may force them to move frequently from one city to another. (33)They are saved a lot of trouble and the cost of moving their furniture each time. They simply rent new furniture when they reach their new homes. Young people with little money do not want to buy cheap furniture that they may soon dislike. They prefer to wait until they have enough money to buy furniture they really like. Meanwhile, they find they can rent better quality furniture than they could afford to buy.
One family, who now have a large, beautiful home of their own, liked their rented furniture so much that they decided to keep renting it instead of buying new things. But usually people don't like to tell others about it. (34)The idea of renting home furnishings is still quite new, and they are not sure what their neighbors might think.
(33)
A.Selling home furnishings.
B.Renting furnished apartments.
C.Selling used furniture.
D.Renting home furnishings.
第1题
当进程请求读磁盘时,操作系统(48)。假设磁盘每磁道有10个扇区,移动臂位于18号柱面上,且进程的请求序列如表1所示。那么,最省时间的响应序列为(49)。
A.只需要进行旋转调度,无须进行移臂调度
B.旋转、移臂调度同时进行
C.先进行移臂调度,再进行旋转调度
D.先进行旋转调度,再进行移臂调度
第2题
当进程请求读磁盘时,操作系统(48)。假设磁盘每磁道有10个扇区,移动臂位于18号柱面上,且进程的请求序列如表1所示。那么,最省时间的响应序列为(49)。
A.只需要进行旋转调度,无须进行移臂调度
B.旋转、移臂调度同时进行
C.先进行移臂调度,再进行旋转调度
D.先进行旋转调度,再进行移臂调度
第3题
对磁盘进行移臂调度时,既考虑了减少寻找时间,又不频繁改变移动臂的移动方向的调度算法是()。
A.先来先服务
B.最短寻找时间优先
C.电梯调度
D.优先级高者优先
第4题
对磁盘进行移臂调度时,既考虑了减少寻找时间,又不频繁改变移动臂的移动方向的调度算法是()。
A.先来先服务
B.最短寻找时间优先
C.电梯调度
D.优先级高者优先
第5题
对磁盘进行移臂调度时,既考虑了减少寻找时间,又不频繁改变移动臂的移动方向的调度算法是()。
A.先来先服务
B.最短寻找时间优先
C.电梯调度
D.优先级高者优先
第6题
对磁盘进行移臂调度时,既考虑了减少寻找时间,又不频繁改变移动臂的移动方向的调度算法是()。
A.先来先服务
B.最短寻找时间优先
C.电梯调度
D.优先级高者优先
第7题
对磁盘进行移臂调度时,既考虑了减少寻道时间,又不频繁改变移动臂的移动方向的调度算法是(21)。
A.最短寻道时间优先
B.优先级高者优先
C.电梯调度
D.先来先服务
第8题
对磁盘进行移臂调度时,既考虑了减少寻找时间,又不频繁改变移动臂的移动方向的调度算法是
A.先来先服务
B.最短寻找时间优先。
C.电梯调度
D.优先级高者优先
第9题
(47)
A.②⑧③④⑤①⑦⑥⑨
B.②⑧③⑤⑦①④⑥⑨
C.①②③④⑤⑥⑦⑧⑨
D.②③⑧④⑥⑨①⑤⑦
第10题
(47)
A.②⑧③④⑤①⑦⑥⑨
B.②⑧③⑤⑦①④⑥⑨
C.①②③④⑤⑥⑦⑧⑨
D.②③⑧④⑥⑨①⑤⑦
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