Which four statements about NetFlow are true？（） ["NetFlow records bidirectional IP traffic flow.","NetFlow export can be implemented over IPv4.","NetFlow export can be implemented over IPv6.","NetFlow records multicast IP traffic flow.","NetFlow records ingress traffic.","NetFlow records egress traffic."]
信息搜集能力
金融风险的特征是（）。 ["隐蔽性","扩散性","加速性","可控性"]
推杆是用以将冷却固化定型后的成型制品在开模后平稳地推出（）的最简单的脱膜结构。
要素评级
怎样理解毛泽东军事思想的科学含义？基本内容包括哪些？
