Which of the following is required to connect a partitioned p5-550 to a modem？（） ["A modem adapter","An async adapter and serial cable","An Ethernet adapter","A 9-pin to 25-pin converter and serial cable"]
技术化要求政府做好（）。 ["信息服务","信息管理","管理信息服务价格","降低电脑价格"]
城市社会流动的影响。
风险管理的基本目标是（）。 ["减少风险事故的发生机会","减轻企业、家庭和个人对风险及潜在损失的烦恼和忧患","分散风险、补偿损失","最小成本获得最大安全保障"]
Which of the following commands will only provide a snapshot of average memory usage for a process？（） [" vmtune"," ps au"," iostat"," rmss -m"]
简述生物传感器的构成及工作原理？
