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在Windows 2000环境下，同一个文件存储在不同的磁盘(软盘，或硬盘)上，它所占据的磁盘空间有时有所不同。其主要原因是磁盘的【10】不同或采用的文件系统不同。

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Information channeling is undergoing remarkable progress in various sectors of society in industrial activities, public services and, more recently, in daily living.In the sector of industrial activities, automation is continuing with the aim of increasing productivity--introduction of computers for process control by the manufacturing industry, and introduction of numerically controlled machine tools, industrial robots, computer-aided design systems and, more recently, flexible manufacturing system by processing and assembling industries.(46) Meanwhile, in offices rapid office automation is presently in progress, stimulated by the popular acceptance of computerized systems, expansion of communications networks and the remarkable technological progress achieved in related equipment such as Japanese word processors. Rapid automation and efficiency improvement are also being achieved in the sector of commodity distribution through the introduction of advanced point of sales systems.Information channeling is being utilized actively in the field of public services. (47) For example, large capacity computers were introduced from an early stage for the control of railway trains and for extending seat reservation services, and more recently diagnostic systems utilizing computers have become commonplace in medical care. (48) To cope with the steady shift toward an aging society, research is in progress to develop technologies related to medical information systems with the aim of improving efficiency in medical services. Regarding education, computerized systems including the CAI (computer assisted instruction) system and CMI (computer managed instruction) system are presently being put to trial operation.In the sector of administration, efficiency of clerical work is being improved through the introduction of computers, and huge volumes of administrative data are more recently being stored in data base systems. (49) In the wake of these moves, computers have become indispensable for advancing large-scale R&D (research and development) projects as in connection with space development and atomic power development, and also in the field of basic research in life science.Daily living is also a sector in which information channeling is taking firm root. (50) To cope with civilian needs for more convenience in home living and in order to meet the needs raised by growing diversification of lifestyle, active research is presently in progress to develop and commercialize new media incorporating sophisticated data processing functions for use in addition to existing media involving the television, radio and telephone. In concert, research is being directed at developing technologies related ’to automation in the home. In the wake of these moves, computers have become indispensable for advancing large-scale R&D (research and development) projects as in connection with space development and atomic power development, and also in the field of basic research in life science.

患者，男性，24岁，冬春季节上腹痛发作已有4年。近半个月来上腹痛加重，伴反酸及饥饿痛，并有半夜痛，痛醒后进食使疼痛缓解。1小时前突然发作上腹部刀割样剧痛，大汗淋漓，面色苍白，腹痛迅速蔓延至全腹而来院急诊。该患者在体检时最可能出现的体征是

A. 肠鸣音亢进
B. 振水音阳性
C. 腹部板状强直
D. 皮肤、巩膜黄染
E. 移动性浊音阳性

怎样区分表皮虫沟、小虫眼和大虫眼

用户要连接到网络中，无论安装哪一种协议，协议都要与【3】、客户机软件和服务进行绑定，否则协议不起作用。