边界层厚度与雷诺数Re的（）成反比。雷诺数愈大，边界层厚度越薄. ["平方","立方","平方根","立方根"]
While troubleshooting a routing problem on the company EIGRP network you discover that one ofthe routers is failing to establish adjacencies with its neighbor. What is a likely cause of thisproblem between neighbors？（） ["The K-values do not match","The hold times do not match","The hello times do not match","The AS numbers do not match"]
有关HAV感染与基因变异的概念，哪项是错误的（） ["HAV可分为4个基因型","与基因型相对应也有4个血清型","HAV感染后可刺激抗体产生特异性IgM和IgG抗体","IgM抗体仅存在于感染后6个月之内是近期感染标志","IgG抗体可保存多年，是过去感染的标志"]
Which two characteristics are common between traffic policing and traffic shaping？（） [" The rate of traffic is measured and compared to a configured policy."," Classification is used to differentiate traffic."," Traffic is marked and sent out according to priority."," Both can be applied to inbound and outbound traffic."," Both buffer traffic to ensure a predetermined traffic rate."," Both drop traffic that is above a predetermined traffic rate."]
三相变压器的额定电压是指三相变压器的线电压，线电压与相电压的关系取决于变压器的（）方式。 ["运行","接线","绝缘方式","冷却方式"]
水资源的基本特征是淡水资源所占比例小，（）及与人类关系最密切。
