下面关于鱼石螈的描述，不正确的是（） ["鱼石螈化石在格陵兰岛发现","鱼石螈是最早登上陆地的两栖动物","鱼石螈有肺和鳃两套呼吸系统","鱼石螈同时具有鱼类和两栖动物的骨骼特征"]
玩具有哪些教育作用？
造成税觉的随意运动的原幽是（） ["色彩对比鲜明","广告刺激强度大","广告具有新异性","立体内在要求的目的和任务"]
法规性书籍
You are working in a data center environment and are assigned the address range 10.188.31.0/23.You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.Which IP address range meets these requirements?（） [" 10.188.31.0\/27"," 10.188.31.0\/26"," 10.188.31.0\/29"," 10.188.31.0\/28"," 10.188.31.0\/25"]
调查法
