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单项选择题

以下关于中断叙述错误的是
A. I/O中断属于外部中断 B. 缺页中断属于外中断，实际上是异常的一种 C. 地址错中断属于内中断 D. 中断机制是操作系统实现多进程并发的基础

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未知题型
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies neeD.It has been demonstrated that rats will, when given a choice over a period of time, prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor was added to the vitamin enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins werE.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria feeding arrangement, with a wide selection of baby food before them. They were given whatever food they pointed to or appeared interested in. We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what‘s best for them.Apparently, there is a kind of "body wisdom" . which hmnans soon losE.Most of us do not eat as wisely as we coulD.
Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat fox, dog and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seem to be greatly influenced by what is going on around them.
In the experiment on rats, a fragrant flavor was added to the rat‘s drinking water to
A.encourage rats to drink vitamin-enriched water
B.find out rats preference in flavor
C.test whether rats know which drink is good for them
D.demonstrate that vitamins aretasteless
The expression 'the habit”（ Line 6, Paragraph 1. refers to drinking water which （）A.has no smell
B.is tasteless
C.has vitamins
D.is flavored
According to the passage, adults eating habits differ from those of babies because （）A.adults know better than babies what kind of food is good for their health
B.adults usually cannot resist the temptation of various delicious foods
C.adults‘ eating habits are closely related to the social and cultural customs
D.adults have more choices of food than babies in eating patterns
The author implied in the passage that most of us （ ）A.eat a balanced diet
B.choose the food that is of nutrition
C.have the habits influenced by the surroundings
D.like to eat the food with a fragrant flavor
As far as their eating habits are concerned, babies and rats are similar in that （ ）A.both have the wisdom to choose a balanced diet
B.both prefer flavored food and drink
C.both have the same eating patterns
D.both develop a taste for the same kinds of flavors
请帮忙给出每个问题的正确答案和分析，谢谢！
未知题型
老廖是某部队的高级军官，2017年10月从部队退休。离开部队回到家中的生活让老廖非常不适应，待在家里无所事事，又不愿出去活动，也不愿与邻居交流，只有每次说起在部队的生活时，才会神采奕奕。老伴看到老廖这种情况很是担心，鼓励他出去走走，参加一些社区内的活动，也被老廖拒绝了。无奈的老伴只能找到社会工作者，希望社会工作者可以帮助老廖。
【问题】
1.军休干部的需要包括哪些方面?
2.结合本案例分析军体社会工作服务对象的问题有哪些?
3.社会工作者应该如何介入本案例开展工作?
单项选择题
指出不列表述中错误的表述 ( )。
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