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问题 单项选择题

某期房年后建成入住，类似现房的价格为5 000元/㎡，出租的年末总收益为500元/㎡，管理费用等其他支出为100元/㎡。估计折现率为10%，风险补偿为现房价格的3%。该期房目前的价格为( 　)元/㎡。

A．4395

B．4486

C．4636

D．4850

答案

参考答案：B

单项选择题

The grid computing is a new (66) technology connecting the distributed and (67) resources to the high-speed network and integrating a super-computer of processing capacity. The significance and architecture of the grid computing is explained. Several kernel technology such as OGSI, resource management, task management, task scheduling, high rate communication and security are described. Aiming at the particularity of the grid computing environment a mechanism similar to the technology of the search engine is designed to registry, discovery and (68) the resources in the grid. The whole model of the resource management is built by connecting task manager in the local resource management system to others with P2P model. The task may migrate among the task managers in order to (69) the load. The task users summit may be executed in relatively tight resource set, which will not only decrease the total communication overheads of the whole task but also (70) the performance of the system.

（68）是（）

A. search for

B. find

C. look for

D. locate
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填空题

子类的对象拥有其超类的对象的全部属性和方法，称为子类对超类的______。
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