以下现象和事件中属于软件故障的是（） ["声卡安装接触不充分","电源供电不足","网卡驱动程序错误","硬盘主从跳线错误"]
WindowsXP启动时，快速调出启动菜单（Boot Menu）的按键是（） ["F12","F9","ESC","F3"]
Which one of the followings is not required on survival crafts?（） ["Anti-seasickness medicine","Immersion suits","Axes","Lifebuoy"]
Who is responsible for the voyage plan?（） ["The person who has done the planning","The master","The navigation officer","The owner"]
下列是计算机硬件组装流程，完成这些过程后才能通电试机，请选择合理的顺序。（） ①主板安装进机箱，连接机箱面板线 ②安装CPU及风扇、内存 ③安装机箱电源 ④连接键鼠、显示器、音响等外设 ⑤安装硬盘、软盘、光驱 ⑥安装显卡、声卡等接口卡 ["⑥②⑤③①④","①②③⑥⑤④","③①②④⑥⑤","②③①⑥⑤④"]
解释下列概念：总线宽度、总线带宽、总线复用、总线的主设备（或主模块）、总线的从设备（或从模块）、总线的传输周期和总线的通信控制。
