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()是一种先进先出(First In First Out,FIFO)的线性表。
()是一种先进先出(First In First Out,FIFO)的线性表。
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()是一种先进先出(First In First Out,FIFO)的线性表。
experimenting on mice. They are studying the relationship between diet and health. At this time, over one hundred experiments are being done in this laboratory.
In one of these experiments, the scientists are studying the relationship between the amount of food the mice eat and their health. The mice are in three groups. All three groups are receiving the same healthy diet. But the amount of food that each group is receiving is different. The first group is eating one cup of food each day, the second group is eating two cups, and the third group of mice is eating three cups.
After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice. But they are more active. Most of the day, they are running, playing with one another, and using the equipment in their cages. Also, they are living longer. Mice usually live for two years. Most of the mice in this group are still alive after three years.
The second group of mice is normal weight. They are healthy, too. They are active, but not as active as the thinner mice. But they are only living about two years, not the three years or more of the thinner mice.
The last group of mice is receiving more food than the other two groups. Most of the day, these mice are eating or sleeping. They are not very active. These mice are living longer than the scientists thought - about a year and a half. But they aren't as healthy. They're sick more often than the other two groups.
(1)、The scientists in the laboratory are studying the relationship between the amount of food and diet.
A:T
B:F
(2)、The first two groups are receiving the most food.
A:T
B:F
(3)、The first group is the thinnest because they do not have a healthy diet.
A:T
B:F
(4)、Normal mice usually live for two years.
A:T
B:F
(5)、The text tells us that people who eat less and exercise more will live longer.
A:T
B:F
在页面置换算法中,存在Belady现象的算法是()。
A.最佳页面置换算法(OPT)
B.先进先出置换算法(FIFO)
C.最近最久未使用算法(LRU)
D.最近未使用算法(NUR)
A.“先产先出”、“近期先出”和按批号发货
B.“先进先出”、“近期先出”和按批号发货
C.处方药
D.“先进先出”、“先产先出”和按批号发货
E.试生产期的新药
F.“先产先出”、“易变先出”和按批号发货
A.队列的存储采用循环队列结构,目的是提高存储空间的重复利用,减少数据的搬移。
B.在队列和堆栈结构中,不能在中间插入和删除元素,只能在一端进行。
C.队列是一种先进后出的线性表。
D.堆栈是一种先进先出的线性表。
E.队列和堆栈都属于线性结构,是操作受限的线性表。