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问题 多项选择题

“天上的太阳，每天都是新的”这一说法形象地指出了                             （   ）

A．客观事物的存在是不以人的主观意志为转移的

B．运动是物质的根本属性

C．运动是永恒的．静止是不存在的

D．万事万物都处在永不停息的运动．变化．发展之中

答案

BD

单项选择题

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 （66） to improve their efficienty and reduce （67） . 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 （68）care．WLAN management solutions provide a variety of other benefits that can be substantial but difficult to measure. For example, they can protect corporate data by preventing（69）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 mananement by integrating with customers’ existing systems, such as OpenView and UniCenter. Fortunately, it isn’t necessary to measure these benefits to justify investing in WLAN management solutions，which can quickly pav for themselves simolv by minimizinu time-consunlina（70）and administrative chores.

A．intrusion

B．aggression

C．inbreak

D．infall
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单项选择题 A1型题

根呈圆柱形，表面灰黄色或淡褐色，质硬而韧，不易折断，断面纤维性并显粉性，味微甜的药材是（）

A.板蓝根

B.人参

C.三七

D.当归

E.黄芪
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