给下面的一则短消息拟一个标题。（不超过25个字）

　　中广网阳泉5月1日消息（记者李凡）据中国之声《全球华语广播网》报道，关注山西晋中和阳泉市郊区29号晚发生的森林火灾。今天（5月1日）凌晨4点30分，1400多名兵力在现场扑救森林火灾。到今天上午10点，火情已经被基本控制住。

　　目前除了阳泉郊区的岳家沟、杨家沟两处还有明火之外，整个火场的明火已经全部被扑灭。这两处明火也已经得到有效的控制。看守人员正严密看守火场，清理余火，防止复燃。记者上午在现场看到，有的地方看着已经扑灭，不再冒烟了，但是半个小时后突然又着起来。山里复燃的可能性还是有的。

　　记者上午采访了山西省副省长、省森林防火指挥部总指挥刘维佳。他表示，着火的主要原因是天气干燥和干雷暴，但也不排除其他人为因素，具体的原因要等到扑灭火之后进行具体的调查。

答：___________________________________________。

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 (166) to improve their efficienty and reduce (167) . 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 (168) 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 (169) 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 (170) and administrative chores.

A．personel

B．expenses

C．overhead

D．hardware