甲公司是一家有机蔬菜生产商,通过分析绿色蔬菜生产商对有机蔬菜产业盈利能力的影响,认为绿色蔬菜生产商的影响力主要是波特五种竞争力模型中所提及的()。 ["购买者的议价能力","潜在进入者的威胁","替代产品的威胁","供应者的议价能力"]
简述团体对个体的作用。
单桩竖向抗拔承载力主要取决于如下几项() ["桩身强度","地基土强度","桩侧阻力","桩身自重","桩抗剪能力"]
简述在计算机中为什么常采用补码表示。
Which of the following is not a valid reason for a packet to be punted?() ["The TCAM has reached capacity","An unknown destination MAC address","A packet being discarded due to a security violation","A Telnet packet from a session being initiated with the switch","Routing protocols sending broadcast traffic","A packet belonging to a GRE tunnel"]
“词为艳科”