The grid computing is a new (81) technology connecting the distributed and (82) 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 (83) 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 (84) 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 (85) the performance of the system.

A. isomorphic B. different C. heterogeneous D. alien

男性，56岁，有面部隆起、肿胀，牙疼，右眼球突出6个月。CT显示：右侧上颌窦扩大，腔内见软组织密度影，窦壁变薄，局部骨质破坏消失。最可能的诊断是（）

A.鼻息肉

B.黏液囊肿

C.纤维血管瘤

D.上颌骨骨髓炎

E.上颌窦癌