[单项选择]一个信息系统的长期目标应包括下列______内容。
Ⅰ．支持企业的战略目标
Ⅱ．支持企业各管理层的需求
Ⅲ．为企业提供一致的数据
Ⅳ．应该适应企业机构/体制改变
Ⅴ．从子系统按优先次序实现信息系统总体结构
A. Ⅰ，Ⅱ和Ⅲ
B. 全部
C. Ⅰ和Ⅲ
D. Ⅱ，Ⅳ和Ⅴ

Losing a job or not being able to find one almost always brings unwelcome changes. If you’ve lost a job, the first feeling is often one of shock. On top of the loss of income, many people find the whole routine of their life is shattered, their contact with other people reduced, their ambitions halted and their identity as a worker removed.
There may be good feelings too -- it’ s nice to be able to lie in bed in the morning, to spend more time with children, or to have more time to think -- a better job may be just around the corner. But, unless a better job does turn up, chances are the days start getting longer and the time becomes harder to fill. Many people pass through periods of difficulty in sleeping and eating. They feel irritable and depressed, often isolated and lonely.
Despite all these problems, unemployment can be a chance for a fresh start. You can discover that it provides an opportunity to sort out or rethink what you want from life and
A. makes the decision
B. is responsible
C. has the fight
D. is confident

Enough sleep is important to health.The amount of sleep (56) depends on the age of the person and the conditions in which sleep (57) .The young may need more sleep than the old, but (58) eight hours are enough for the (59) of grown-ups.Some can (60) with less than this amount but (61) may need more.Every person knows his own (62) .It is then a matter of how to (63) it.Sleep should always be (64) to make one relaxed and ready for (65) work.
Fresh air is (66) to sound sleep.It is not (67) reason for some people to (68) that it is practical to sleep in the open air. (69) a person can keep himself warm, (70) sleeping probably gives the body (71) complete relaxation.
Ability to sleep is largely a (72) .Out-of-door (73) , a good habit of regular (74) , the avoidance (避免) of late eating, and (75) A. necessary
B. able
C. no good
D. beat