话筒是向计算机提供（）的设备。 音频数字信号。 音频模拟信号。 采样信号。 音频数字信号和采样信号。
MIDI数据与数字化波形声音数据（）。 相同。 不同。 相近。 格式一致。
已知某带权图G的邻接表如下所示，其中表节点的结构为：则图G是（）。 无向图。 完全图。 有向图。 强连通图。
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 efficienty 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 that 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 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 pay for themselves simply by minimizing time-consuming(5) and administrative chores.空白处（1）应选择（） A.chores。 chains。 changes。 links。
李某购买了一张有注册商标的正版软件光盘，擅自将其复制出售，则该行为侵犯了开发商的（）。 财产所有权。 商标权。 物权。 知识产权。
Windows系统中的磁盘碎片整理程序（）。
