单项选择题
A.Programmable ArrayLogic，PAL B.Complex Programmable Logic Device，CPLD C.Field Programmable Gate Array，FPGA D.Light Emitting Diode，LED
A.Random Access Memory，RAM B.Read Only Memory，ROM C.Programmable Array Logic，PAL D.Complex Programmable Logic Device，CPLD
A.编码器 B.加法器 C.多工器 D.正反器