确定系统优先顺序的标准包括( )。 Ⅰ.潜在的利益分析 Ⅱ.对企业的影响 Ⅲ

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问题:

确定系统优先顺序的标准包括( )。 Ⅰ.潜在的利益分析 Ⅱ.对企业的影响 Ⅲ.成功的可能性 Ⅳ.需求 Ⅴ.系统的大小

A.前四项

B.全部

C.后四项

D.Ⅰ、Ⅲ和Ⅴ

考点:计算机等级考试信息管理技术三级信息管理技术笔试80
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IEEE802.5令牌环网中,时延由 (59) 决定。要保证环网的正常运行,环的时延必须有一个最低限度,即 (60) 。如果达不到这个要求,可以采用的一种办法是通过增加电缆长度,人为地增加时延来解决。

设有某一个令牌环网长度为400m,环上有28个站点,其数据传输率为4Mb/s,环上信号的传播速度为200m/μs,每个站点具有1 bit时延,则环上可能存在的最小和最大时延分别是 (61) bit和 (62) bit。当始终有一半站点打开工作时,要保证环网的正常运行,至少还要将电缆的长度增加 (63) m。

62()

A.9

B.28

C.36

D.48

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创办了世界上第一所幼儿园,被世人誉为"幼儿教育之父"的人是()

A.裴斯泰洛齐

B.福禄培尔

C.卢梭

D.洛克

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组织行为学的研究对象主要包括()

A.人的心理活动

B.一切人的行为规律性

C.行为反应规律性

D.群体心理规律性

E.组织心理规律性

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The first 50 years of the next millennium will be critical for the world’s population. By 2050 population growth should have leveled off, but by then we’ll have 10 billion people -- two-thirds as many again as we have today. The rate of population growth is something we can choose right now, though it’s not something that just happens, but a matter of human choice. The choice is a complicated one, with many variables, but it remains a choice.
If we want to prevent a population explosion, we should take action now -- or assist the poorer countries to do so. They need better government, better institutions, better labor and capital markets, better schools.
Anything that increases the value of women’s time and adds to the cost of caring for a child makes a woman less likely to have that child. Since big families are often seen as safety nets for illness and old age, improving poor people’s access to insurance, pensions and welfare institutions also has a major impact. This can be as simple as rural credit, providing a means of saving. Finally, there is education -- both for women and, perhaps even more important, for the next generation of children.
These steps are there to be taken, but there appear to be some countries that are not seriously trying at the moment. If we cannot achieve that we will certainly not control population.
That said, I don’t feel pessimistic that we are going to run out of resources: we are becoming more efficient at producing food faster than the rate at which population is increasing. There is, however, a risk that we will wreck the environment so effectively that the world will no longer be an attractive place to live. That really would be a dismal outcome, to reach world population equilibrium only to find we’d destroyed the natural environment in the process.

The best way to help the poor people to reduce the number of children is to ______.

A.solve their practical problems they face in welfare

B.provide them with financial aid

C.educate them on the negative effect of having more children

D.make them understand that the earth faces a population explosion

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斯蒂伯格公司的ROE为8.50%,股利支付率为35%。

公司如何改变其可持续增长率

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