安装(回撤)机电管理中要求电缆接线盒的额定电压与电缆使用()相符。
A.材质
B.型号
C.电压
D.电流
参考答案:C
You can use a large plastics bottle, _____ cut off, as a plot to grow flowers in. [ ]
A. with its top
B. the top of which
C. whose top
D. its top is
多道批处理系统的硬件支持是20世纪60年代初发展起来的()。
A.RISC技术
B.通道和中断机构
C.集成电路
D.高速内存