Which three statements are true about implementing wireless LANs in the network using Ciscodevices？（） ["Antenna power is a relative value reference to dBi","LWAPP allows encrypted communications between lightweight access points and WLANcontrollers.","Characteristics of antennas are directionality， gain， and polarization","Power over Ethernet （PoE） is only available when a WLAN controller is integrated into thenetwork","The WLAN solution Engine （WLSE） is used to control lightweight access points","One of the advantages of the lightweight WLAN solution is that the devices act indepently"]
网络协议的作用之一是使发送端和接受端能够协同工作。
公共财政追求（）。 ["企业利益最大化","经济利益最大化","公共利益最大化","政策效力最大化"]
A公司涉及一起诉讼，根据以前的经验及公司所聘请律师的意见判断，该公司在该诉讼中胜诉的可能性有30％，败诉的可能性有70％。如果败诉，A公司将要支付100万元的赔偿款。根据规定，A公司应于年末资产负债表中确认负债金额（）。
变质矿床可划分为三个主要成因类型，即
如何控制微生物发酵产酶的工艺条件？
