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[单选题]
当各个处理机上活跃的进程是共享同一集中连续物理地址空间中的数据时，主存采用( )是有利的。
A
高位交叉编址b.顺序编址c.低位交叉编址d.散列编址
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参考答案
试题答案：
C
答案解释：
该题考查多处理机的存储器组织，当各个处理机上活跃的进程是共享同一集中连续物理地址空间中的数据时，主存采用低位交叉编址是有利的；当它们只是较少或基本不共享集中的数据时，采用高位交叉编址较好；选项B，D与本题干无关，故正确选项是C。
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以下不属于机群系统与传统的并行处理系统相比所具有的优势是 ( )。
( )技术能应用在结构相同或相似的机器之间，实现汇编语言软件的移植，较好地解决了软件环境要求相对稳定和硬、器件技术迅速发展的矛盾。
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资本主义劳动过程是资本家消费他所购买的劳动力的过程，其特点是（ ）
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社会扩大再生产的源泉和国家对宏观经济进行调控的基础是（ ）
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国外需求是指_________统计的出口总值。 （ ）
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5.
4. Present pension structures no longer work. They were established in a more youthful period with relatively few older people who were often poor and iii, and generally spent only a short time in retirement. In rich countries today, older people are often well-off and in good health, and are spending around 20 years in retirement. Therefore there is the need for reform.This survey has presented the arguments for more private funding and for fairer pensions. Such changes will create motives for individuals to take charge of their own retirement needs rather than leaving the task to the state. This, in turn, will make the provision of public pensions more afford- able.Even so, the state will continue to play a leading role in pensions. At a minimum, governments must offer a safety net, probably in the form of a defined benefit financed through taxation, for people who for some reason have not been able to provide for themselves and who would otherwise be miserable in old age. More broadly, there is a case for the state to offer a slimmed-down pay-as-you-go pension system, although as far as possible this should be organized along defined-contributions lines. Such provision widens the range of assets to include human capital because the effective return comes from total wages, and offers a safe if low return.Governments also have to create a suitable framework for effective private pensions. Administrative(行政的)expenses have to be tightly controlled, and appropriate tax motives have to be offered to encourage voluntary pension saving. Where the state provides a generous safety net, private-pension saving may have to be made mandatory(强制的), otherwise many people will not bother.So much for the developed countries, but what of the more youthful populations of tile rest of the world? In 1994, the World Bank came down heavily in favor of more funding in private accounts. It thought the state's role should be to provide a smallish first pillar with the limited task of providing protection against old-age poverty, and to command a privately-funded second pillar to provide the bulk of pensions.(5分)4.1 More private funding and fairer pensions____.(1分)A. can urge people to save more private-pensionsB. may be financed through taxC. can lessen the burden of the stateD. can provide more public pensions
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