晶体、非晶体、准晶体的异同？
Which of the following descriptions about IP spoofing is correct？（） ["IP source address is forged","IP destination address is forged","IP TCP source port is forged","IP TCP destination port is forged","None of above"]
Traffic drop for FCoE is experienced across a Nexus 5548 switch. What is a possible cause？（） [" Server’s CNA does not support DCBX and PFC TLV was not negotiated."," A "no-drop" class has not been configured for FCoE"," The system is running with the default QOS policies."," The link is oversubscribed."]
从资本预算过程看，资本预算的核心环节是（） ["现金流量的评价","现金净流量的评价","资本支出项目评价","项目的获利投资项目评价"]
特征分析说
什么是纵测线？非纵测线？偏移距？道间距？
