可编程控制器是一台（）的工业现场用计算机。
A、抗干扰能力强
B、工作可靠
C、生产控制过程
D、通用性强
E、编程方便
参考答案：A, B, D, E
— Why didn't you come and open the door for me, dear?
— Oh, sorry, I _____ in the kitchen. I didn't hear you. [ ]
A. cooked
B. would cook
C. was cooking
控制释放技术
