How many RADIUS servers can be added to a controller and thereafter assigned to theauthentication or accounting of individual WLAN IDs？（） ["14","15","16","17"]
对称密码体制又称为（）密码体制，它包括（）密码和（）密码。
如图1-1所示，已知αAB＝225°16′30″，测得连接角及折角（左角）为：βB＝35°20′42″、βC=190°24′54″、βD=170°18′12″。试计算各边的坐标方位角αBC、αCD、αDE各为多少？
What is the Cisco goal regarding market share for each of the major markets that its products compete in?（） ["to compete effectively in every market in whichcisco participates","to be No.1 or No.2 in every market in whichcisco participates","to be in the top 1 percent in every market in whichcisco participates","to be first in every market in whichcisco participate"]
过滤式自救器的使用方法包括（）。 ["取下保护罩、拉开封条","拨开外壳上盖","取出药罐","戴上头戴，用鼻夹夹住鼻子，咬住口具进行呼吸"]
什么是过饱和固溶体的分解转变？转变方式包括哪些？各有何特点？
