【简答题】指挥信息系统在西方发达国家称之为C4ISR系统,其中I是( )系统的简称。
【单选题】What does the man think of his job in Magna Design? 查看材料
【单选题】—Airplane design is a job ______ you to work 10 to 12 hours a day and sometimes seven days a week. —_______. I think airplane design needs good teamwork as well. [ ]
【简答题】指挥信息系统在西方发达国家称之为C4ISR系统,其中R是( )系统的简称。
【单选题】材料在()状态下单位体积的质量称表观密度。