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电子政务根据其服务的对象不同，基本上可以分为四种模式。某政府部门内部的“办公自动化系统”，属于（）模式。
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某服务器软件系统对可用性(Availability)、性能(Performance)和可修改性(Modification)的要求较高， (55) 设计策略能提高该系统的可用性， (56) 设计策略能够提高该系统的性能， (57) 设计策略能够提高该系统的可修改性。 （57）处填（）。
WLANs are increasingly popular because they enable cost-effective connections among people, applications and data that were not possible, or not cost-effective, in the past. For example, WLAN-based applications can enable fine-grained management of supply and distribution (1) to improve their efficiency and reduce (2) . WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care applications to reduce errors and improve overall (3) care. WLAN management solutions provide a variety of other benefits can be substantial but difficult to measure. For example, they can protect corporate data by preventing (4) through rogue access points. They help control salary costs, by allowing IT staffs to manage larger networks without adding staff. And they can improve overall network management by integrating with customers’ existing systems, such as Open View and UniCenter. Fortunately, it isn’t necessary to measure these benefits to justify investing in WLAN management solutions, which can quickly pay for themselves simply by minimizing time-consuming (5) and administrative chores. 4（）
以下关于信息和信息化的论述中，不正确的是（）
关于网络安全，以下说法中正确的是（）
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